491353720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:246

約数の個数: 256

約数和(自身を含む): 1428295680

約数和(自身を除く): 936941960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 17, 20, 22, 26, 31, 34, 40, 44, 52, 55, 62, 65, 68, 85, 88, 104, 110, 124, 130, 136, 143, 155, 163, 170, 187, 220, 221, 248, 260, 286, 310, 326, 340, 341, 374, 403, 440, 442, 520, 527, 572, 620, 652, 680, 682, 715, 748, 806, 815, 884, 935, 1054, 1105, 1144, 1240, 1304, 1364, 1430, 1496, 1612, 1630, 1705, 1768, 1793, 1870, 2015, 2108, 2119, 2210, 2431, 2635, 2728, 2771, 2860, 3224, 3260, 3410, 3586, 3740, 4030, 4216, 4238, 4420, 4433, 4862, 5053, 5270, 5542, 5720, 5797, 6520, 6820, 6851, 7172, 7480, 8060, 8476, 8840, 8866, 8965, 9724, 10106, 10540, 10595, 11084, 11594, 12155, 13640, 13702, 13855, 14344, 16120, 16952, 17732, 17930, 19448, 20212, 21080, 21190, 22165, 22168, 23188, 23309, 24310, 25265, 27404, 27710, 28985, 30481, 34255, 35464, 35860, 36023, 40424, 42380, 44330, 46376, 46618, 48620, 50530, 54808, 55420, 55583, 57970, 60962, 65689, 68510, 71720, 72046, 75361, 84760, 85901, 88660, 93236, 97240, 101060, 110840, 111166, 115940, 116545, 121924, 131378, 137020, 144092, 150722, 152405, 171802, 177320, 180115, 186472, 202120, 222332, 231880, 233090, 243848, 262756, 274040, 277915, 288184, 301444, 304810, 328445, 343604, 360230, 376805, 396253, 429505, 444664, 466180, 525512, 555830, 602888, 609620, 656890, 687208, 720460, 722579, 753610, 792506, 859010, 932360, 944911, 1111660, 1116713, 1219240, 1313780, 1440920, 1445158, 1507220, 1585012, 1718020, 1889822, 1981265, 2223320, 2233426, 2627560, 2890316, 3014440, 3170024, 3436040, 3612895, 3779644, 3962530, 4466852, 4724555, 5583565, 5780632, 7225790, 7559288, 7925060, 8933704, 9449110, 11167130, 12283843, 14451580, 15850120, 18898220, 22334260, 24567686, 28903160, 37796440, 44668520, 49135372, 61419215, 98270744, 122838430, 245676860, 491353720]

約数ペア:

[(1, 491353720), (2, 245676860), (4, 122838430), (5, 98270744), (8, 61419215), (10, 49135372), (11, 44668520), (13, 37796440), (17, 28903160), (20, 24567686), (22, 22334260), (26, 18898220), (31, 15850120), (34, 14451580), (40, 12283843), (44, 11167130), (52, 9449110), (55, 8933704), (62, 7925060), (65, 7559288), (68, 7225790), (85, 5780632), (88, 5583565), (104, 4724555), (110, 4466852), (124, 3962530), (130, 3779644), (136, 3612895), (143, 3436040), (155, 3170024), (163, 3014440), (170, 2890316), (187, 2627560), (220, 2233426), (221, 2223320), (248, 1981265), (260, 1889822), (286, 1718020), (310, 1585012), (326, 1507220), (340, 1445158), (341, 1440920), (374, 1313780), (403, 1219240), (440, 1116713), (442, 1111660), (520, 944911), (527, 932360), (572, 859010), (620, 792506), (652, 753610), (680, 722579), (682, 720460), (715, 687208), (748, 656890), (806, 609620), (815, 602888), (884, 555830), (935, 525512), (1054, 466180), (1105, 444664), (1144, 429505), (1240, 396253), (1304, 376805), (1364, 360230), (1430, 343604), (1496, 328445), (1612, 304810), (1630, 301444), (1705, 288184), (1768, 277915), (1793, 274040), (1870, 262756), (2015, 243848), (2108, 233090), (2119, 231880), (2210, 222332), (2431, 202120), (2635, 186472), (2728, 180115), (2771, 177320), (2860, 171802), (3224, 152405), (3260, 150722), (3410, 144092), (3586, 137020), (3740, 131378), (4030, 121924), (4216, 116545), (4238, 115940), (4420, 111166), (4433, 110840), (4862, 101060), (5053, 97240), (5270, 93236), (5542, 88660), (5720, 85901), (5797, 84760), (6520, 75361), (6820, 72046), (6851, 71720), (7172, 68510), (7480, 65689), (8060, 60962), (8476, 57970), (8840, 55583), (8866, 55420), (8965, 54808), (9724, 50530), (10106, 48620), (10540, 46618), (10595, 46376), (11084, 44330), (11594, 42380), (12155, 40424), (13640, 36023), (13702, 35860), (13855, 35464), (14344, 34255), (16120, 30481), (16952, 28985), (17732, 27710), (17930, 27404), (19448, 25265), (20212, 24310), (21080, 23309), (21190, 23188), (22165, 22168)]