257335260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6733}}^1$

素因数の和:6772

約数の個数: 144

約数和(自身を含む): 902786976

約数和(自身を除く): 645451716

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 780, 910, 980, 1092, 1274, 1365, 1470, 1820, 1911, 2548, 2730, 2940, 3185, 3822, 5460, 6370, 6733, 7644, 9555, 12740, 13466, 19110, 20199, 26932, 33665, 38220, 40398, 47131, 67330, 80796, 87529, 94262, 100995, 134660, 141393, 175058, 188524, 201990, 235655, 262587, 282786, 329917, 350116, 403980, 437645, 471310, 525174, 565572, 612703, 659834, 706965, 875290, 942620, 989751, 1050348, 1225406, 1312935, 1319668, 1413930, 1649585, 1750580, 1838109, 1979502, 2450812, 2625870, 2827860, 3063515, 3299170, 3676218, 3959004, 4288921, 4948755, 5251740, 6127030, 6598340, 7352436, 8577842, 9190545, 9897510, 12254060, 12866763, 17155684, 18381090, 19795020, 21444605, 25733526, 36762180, 42889210, 51467052, 64333815, 85778420, 128667630, 257335260]

約数ペア:

[(1, 257335260), (2, 128667630), (3, 85778420), (4, 64333815), (5, 51467052), (6, 42889210), (7, 36762180), (10, 25733526), (12, 21444605), (13, 19795020), (14, 18381090), (15, 17155684), (20, 12866763), (21, 12254060), (26, 9897510), (28, 9190545), (30, 8577842), (35, 7352436), (39, 6598340), (42, 6127030), (49, 5251740), (52, 4948755), (60, 4288921), (65, 3959004), (70, 3676218), (78, 3299170), (84, 3063515), (91, 2827860), (98, 2625870), (105, 2450812), (130, 1979502), (140, 1838109), (147, 1750580), (156, 1649585), (182, 1413930), (195, 1319668), (196, 1312935), (210, 1225406), (245, 1050348), (260, 989751), (273, 942620), (294, 875290), (364, 706965), (390, 659834), (420, 612703), (455, 565572), (490, 525174), (546, 471310), (588, 437645), (637, 403980), (735, 350116), (780, 329917), (910, 282786), (980, 262587), (1092, 235655), (1274, 201990), (1365, 188524), (1470, 175058), (1820, 141393), (1911, 134660), (2548, 100995), (2730, 94262), (2940, 87529), (3185, 80796), (3822, 67330), (5460, 47131), (6370, 40398), (6733, 38220), (7644, 33665), (9555, 26932), (12740, 20199), (13466, 19110)]