278776680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:569

約数の個数: 256

約数和(自身を含む): 1052352000

約数和(自身を除く): 773575320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 49, 52, 56, 60, 65, 70, 78, 84, 91, 98, 104, 105, 120, 130, 140, 147, 156, 168, 182, 195, 196, 210, 245, 260, 273, 280, 294, 312, 343, 364, 390, 392, 420, 455, 490, 520, 521, 546, 588, 637, 686, 728, 735, 780, 840, 910, 980, 1029, 1042, 1092, 1176, 1274, 1365, 1372, 1470, 1560, 1563, 1715, 1820, 1911, 1960, 2058, 2084, 2184, 2548, 2605, 2730, 2744, 2940, 3126, 3185, 3430, 3640, 3647, 3822, 4116, 4168, 4459, 5096, 5145, 5210, 5460, 5880, 6252, 6370, 6773, 6860, 7294, 7644, 7815, 8232, 8918, 9555, 10290, 10420, 10920, 10941, 12504, 12740, 13377, 13546, 13720, 14588, 15288, 15630, 17836, 18235, 19110, 20319, 20580, 20840, 21882, 22295, 25480, 25529, 26754, 27092, 29176, 31260, 33865, 35672, 36470, 38220, 40638, 41160, 43764, 44590, 47411, 51058, 53508, 54184, 54705, 62520, 66885, 67730, 72940, 76440, 76587, 81276, 87528, 89180, 94822, 101595, 102116, 107016, 109410, 127645, 133770, 135460, 142233, 145880, 153174, 162552, 178360, 178703, 189644, 203190, 204232, 218820, 237055, 255290, 267540, 270920, 284466, 306348, 331877, 357406, 379288, 382935, 406380, 437640, 474110, 510580, 535080, 536109, 568932, 612696, 663754, 711165, 714812, 765870, 812760, 893515, 948220, 995631, 1021160, 1072218, 1137864, 1327508, 1422330, 1429624, 1531740, 1659385, 1787030, 1896440, 1991262, 2144436, 2323139, 2655016, 2680545, 2844660, 3063480, 3318770, 3574060, 3982524, 4288872, 4646278, 4978155, 5361090, 5689320, 6637540, 6969417, 7148120, 7965048, 9292556, 9956310, 10722180, 11615695, 13275080, 13938834, 18585112, 19912620, 21444360, 23231390, 27877668, 34847085, 39825240, 46462780, 55755336, 69694170, 92925560, 139388340, 278776680]

約数ペア:

[(1, 278776680), (2, 139388340), (3, 92925560), (4, 69694170), (5, 55755336), (6, 46462780), (7, 39825240), (8, 34847085), (10, 27877668), (12, 23231390), (13, 21444360), (14, 19912620), (15, 18585112), (20, 13938834), (21, 13275080), (24, 11615695), (26, 10722180), (28, 9956310), (30, 9292556), (35, 7965048), (39, 7148120), (40, 6969417), (42, 6637540), (49, 5689320), (52, 5361090), (56, 4978155), (60, 4646278), (65, 4288872), (70, 3982524), (78, 3574060), (84, 3318770), (91, 3063480), (98, 2844660), (104, 2680545), (105, 2655016), (120, 2323139), (130, 2144436), (140, 1991262), (147, 1896440), (156, 1787030), (168, 1659385), (182, 1531740), (195, 1429624), (196, 1422330), (210, 1327508), (245, 1137864), (260, 1072218), (273, 1021160), (280, 995631), (294, 948220), (312, 893515), (343, 812760), (364, 765870), (390, 714812), (392, 711165), (420, 663754), (455, 612696), (490, 568932), (520, 536109), (521, 535080), (546, 510580), (588, 474110), (637, 437640), (686, 406380), (728, 382935), (735, 379288), (780, 357406), (840, 331877), (910, 306348), (980, 284466), (1029, 270920), (1042, 267540), (1092, 255290), (1176, 237055), (1274, 218820), (1365, 204232), (1372, 203190), (1470, 189644), (1560, 178703), (1563, 178360), (1715, 162552), (1820, 153174), (1911, 145880), (1960, 142233), (2058, 135460), (2084, 133770), (2184, 127645), (2548, 109410), (2605, 107016), (2730, 102116), (2744, 101595), (2940, 94822), (3126, 89180), (3185, 87528), (3430, 81276), (3640, 76587), (3647, 76440), (3822, 72940), (4116, 67730), (4168, 66885), (4459, 62520), (5096, 54705), (5145, 54184), (5210, 53508), (5460, 51058), (5880, 47411), (6252, 44590), (6370, 43764), (6773, 41160), (6860, 40638), (7294, 38220), (7644, 36470), (7815, 35672), (8232, 33865), (8918, 31260), (9555, 29176), (10290, 27092), (10420, 26754), (10920, 25529), (10941, 25480), (12504, 22295), (12740, 21882), (13377, 20840), (13546, 20580), (13720, 20319), (14588, 19110), (15288, 18235), (15630, 17836)]