821136680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:464

約数の個数: 256

約数和(自身を含む): 2477260800

約数和(自身を除く): 1656124120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 31, 35, 38, 40, 52, 56, 62, 65, 70, 76, 91, 95, 104, 124, 130, 133, 140, 152, 155, 182, 190, 217, 247, 248, 260, 266, 280, 310, 364, 380, 383, 403, 434, 455, 494, 520, 532, 589, 620, 665, 728, 760, 766, 806, 868, 910, 988, 1064, 1085, 1178, 1235, 1240, 1330, 1532, 1612, 1729, 1736, 1820, 1915, 1976, 2015, 2170, 2356, 2470, 2660, 2681, 2821, 2945, 3064, 3224, 3458, 3640, 3830, 4030, 4123, 4340, 4712, 4940, 4979, 5320, 5362, 5642, 5890, 6916, 7277, 7657, 7660, 8060, 8246, 8645, 8680, 9880, 9958, 10724, 11284, 11780, 11873, 13405, 13832, 14105, 14554, 15314, 15320, 16120, 16492, 17290, 19916, 20615, 21448, 22568, 23560, 23746, 24895, 26810, 28210, 29108, 30628, 32984, 34580, 34853, 36385, 38285, 39832, 41230, 47492, 49790, 50939, 53599, 53620, 56420, 58216, 59365, 61256, 69160, 69706, 72770, 76570, 82460, 83111, 94601, 94984, 99580, 101878, 107198, 107240, 112840, 118730, 139412, 145540, 153140, 154349, 164920, 166222, 174265, 189202, 199160, 203756, 214396, 225587, 237460, 254695, 267995, 278824, 291080, 306280, 308698, 332444, 348530, 378404, 407512, 415555, 428792, 451174, 473005, 474920, 509390, 535990, 617396, 662207, 664888, 697060, 756808, 771745, 831110, 902348, 946010, 1018780, 1071980, 1080443, 1127935, 1234792, 1324414, 1394120, 1543490, 1579109, 1662220, 1804696, 1892020, 2037560, 2143960, 2160886, 2255870, 2648828, 2932631, 3086980, 3158218, 3311035, 3324440, 3784040, 4321772, 4511740, 5297656, 5402215, 5865262, 6173960, 6316436, 6622070, 7895545, 8643544, 9023480, 10804430, 11730524, 12632872, 13244140, 14663155, 15791090, 20528417, 21608860, 23461048, 26488280, 29326310, 31582180, 41056834, 43217720, 58652620, 63164360, 82113668, 102642085, 117305240, 164227336, 205284170, 410568340, 821136680]

約数ペア:

[(1, 821136680), (2, 410568340), (4, 205284170), (5, 164227336), (7, 117305240), (8, 102642085), (10, 82113668), (13, 63164360), (14, 58652620), (19, 43217720), (20, 41056834), (26, 31582180), (28, 29326310), (31, 26488280), (35, 23461048), (38, 21608860), (40, 20528417), (52, 15791090), (56, 14663155), (62, 13244140), (65, 12632872), (70, 11730524), (76, 10804430), (91, 9023480), (95, 8643544), (104, 7895545), (124, 6622070), (130, 6316436), (133, 6173960), (140, 5865262), (152, 5402215), (155, 5297656), (182, 4511740), (190, 4321772), (217, 3784040), (247, 3324440), (248, 3311035), (260, 3158218), (266, 3086980), (280, 2932631), (310, 2648828), (364, 2255870), (380, 2160886), (383, 2143960), (403, 2037560), (434, 1892020), (455, 1804696), (494, 1662220), (520, 1579109), (532, 1543490), (589, 1394120), (620, 1324414), (665, 1234792), (728, 1127935), (760, 1080443), (766, 1071980), (806, 1018780), (868, 946010), (910, 902348), (988, 831110), (1064, 771745), (1085, 756808), (1178, 697060), (1235, 664888), (1240, 662207), (1330, 617396), (1532, 535990), (1612, 509390), (1729, 474920), (1736, 473005), (1820, 451174), (1915, 428792), (1976, 415555), (2015, 407512), (2170, 378404), (2356, 348530), (2470, 332444), (2660, 308698), (2681, 306280), (2821, 291080), (2945, 278824), (3064, 267995), (3224, 254695), (3458, 237460), (3640, 225587), (3830, 214396), (4030, 203756), (4123, 199160), (4340, 189202), (4712, 174265), (4940, 166222), (4979, 164920), (5320, 154349), (5362, 153140), (5642, 145540), (5890, 139412), (6916, 118730), (7277, 112840), (7657, 107240), (7660, 107198), (8060, 101878), (8246, 99580), (8645, 94984), (8680, 94601), (9880, 83111), (9958, 82460), (10724, 76570), (11284, 72770), (11780, 69706), (11873, 69160), (13405, 61256), (13832, 59365), (14105, 58216), (14554, 56420), (15314, 53620), (15320, 53599), (16120, 50939), (16492, 49790), (17290, 47492), (19916, 41230), (20615, 39832), (21448, 38285), (22568, 36385), (23560, 34853), (23746, 34580), (24895, 32984), (26810, 30628), (28210, 29108)]