1639551480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{4271}}^1$

素因数の和:4749

約数の個数: 128

約数和(自身を含む): 5634938880

約数和(自身を除く): 3995387400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 457, 840, 914, 1371, 1828, 2285, 2742, 3199, 3656, 4271, 4570, 5484, 6398, 6855, 8542, 9140, 9597, 10968, 12796, 12813, 13710, 15995, 17084, 18280, 19194, 21355, 25592, 25626, 27420, 29897, 31990, 34168, 38388, 42710, 47985, 51252, 54840, 59794, 63980, 64065, 76776, 85420, 89691, 95970, 102504, 119588, 127960, 128130, 149485, 170840, 179382, 191940, 239176, 256260, 298970, 358764, 383880, 448455, 512520, 597940, 717528, 896910, 1195880, 1793820, 1951847, 3587640, 3903694, 5855541, 7807388, 9759235, 11711082, 13662929, 15614776, 19518470, 23422164, 27325858, 29277705, 39036940, 40988787, 46844328, 54651716, 58555410, 68314645, 78073880, 81977574, 109303432, 117110820, 136629290, 163955148, 204943935, 234221640, 273258580, 327910296, 409887870, 546517160, 819775740, 1639551480]

約数ペア:

[(1, 1639551480), (2, 819775740), (3, 546517160), (4, 409887870), (5, 327910296), (6, 273258580), (7, 234221640), (8, 204943935), (10, 163955148), (12, 136629290), (14, 117110820), (15, 109303432), (20, 81977574), (21, 78073880), (24, 68314645), (28, 58555410), (30, 54651716), (35, 46844328), (40, 40988787), (42, 39036940), (56, 29277705), (60, 27325858), (70, 23422164), (84, 19518470), (105, 15614776), (120, 13662929), (140, 11711082), (168, 9759235), (210, 7807388), (280, 5855541), (420, 3903694), (457, 3587640), (840, 1951847), (914, 1793820), (1371, 1195880), (1828, 896910), (2285, 717528), (2742, 597940), (3199, 512520), (3656, 448455), (4271, 383880), (4570, 358764), (5484, 298970), (6398, 256260), (6855, 239176), (8542, 191940), (9140, 179382), (9597, 170840), (10968, 149485), (12796, 128130), (12813, 127960), (13710, 119588), (15995, 102504), (17084, 95970), (18280, 89691), (19194, 85420), (21355, 76776), (25592, 64065), (25626, 63980), (27420, 59794), (29897, 54840), (31990, 51252), (34168, 47985), (38388, 42710)]