15661779920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{617}}^1$

素因数の和:877

約数の個数: 160

約数和(自身を含む): 38357687808

約数和(自身を除く): 22695907888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 47, 80, 86, 94, 157, 172, 188, 215, 235, 314, 344, 376, 430, 470, 617, 628, 688, 752, 785, 860, 940, 1234, 1256, 1570, 1720, 1880, 2021, 2468, 2512, 3085, 3140, 3440, 3760, 4042, 4936, 6170, 6280, 6751, 7379, 8084, 9872, 10105, 12340, 12560, 13502, 14758, 16168, 20210, 24680, 26531, 27004, 28999, 29516, 32336, 33755, 36895, 40420, 49360, 53062, 54008, 57998, 59032, 67510, 73790, 80840, 96869, 106124, 108016, 115996, 118064, 132655, 135020, 144995, 147580, 161680, 193738, 212248, 231992, 265310, 270040, 289990, 295160, 317297, 387476, 424496, 463984, 484345, 530620, 540080, 579980, 590320, 634594, 774952, 968690, 1061240, 1159960, 1246957, 1269188, 1549904, 1586485, 1937380, 2122480, 2319920, 2493914, 2538376, 3172970, 3874760, 4165367, 4552843, 4987828, 5076752, 6234785, 6345940, 7749520, 8330734, 9105686, 9975656, 12469570, 12691880, 16661468, 18211372, 19951312, 20826835, 22764215, 24939140, 25383760, 33322936, 36422744, 41653670, 45528430, 49878280, 66645872, 72845488, 83307340, 91056860, 99756560, 166614680, 182113720, 195772249, 333229360, 364227440, 391544498, 783088996, 978861245, 1566177992, 1957722490, 3132355984, 3915444980, 7830889960, 15661779920]

約数ペア:

[(1, 15661779920), (2, 7830889960), (4, 3915444980), (5, 3132355984), (8, 1957722490), (10, 1566177992), (16, 978861245), (20, 783088996), (40, 391544498), (43, 364227440), (47, 333229360), (80, 195772249), (86, 182113720), (94, 166614680), (157, 99756560), (172, 91056860), (188, 83307340), (215, 72845488), (235, 66645872), (314, 49878280), (344, 45528430), (376, 41653670), (430, 36422744), (470, 33322936), (617, 25383760), (628, 24939140), (688, 22764215), (752, 20826835), (785, 19951312), (860, 18211372), (940, 16661468), (1234, 12691880), (1256, 12469570), (1570, 9975656), (1720, 9105686), (1880, 8330734), (2021, 7749520), (2468, 6345940), (2512, 6234785), (3085, 5076752), (3140, 4987828), (3440, 4552843), (3760, 4165367), (4042, 3874760), (4936, 3172970), (6170, 2538376), (6280, 2493914), (6751, 2319920), (7379, 2122480), (8084, 1937380), (9872, 1586485), (10105, 1549904), (12340, 1269188), (12560, 1246957), (13502, 1159960), (14758, 1061240), (16168, 968690), (20210, 774952), (24680, 634594), (26531, 590320), (27004, 579980), (28999, 540080), (29516, 530620), (32336, 484345), (33755, 463984), (36895, 424496), (40420, 387476), (49360, 317297), (53062, 295160), (54008, 289990), (57998, 270040), (59032, 265310), (67510, 231992), (73790, 212248), (80840, 193738), (96869, 161680), (106124, 147580), (108016, 144995), (115996, 135020), (118064, 132655)]