678989960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{233}}^1$

素因数の和:471

約数の個数: 128

約数和(自身を含む): 1728604800

約数和(自身を除く): 1049614840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 179, 185, 220, 233, 296, 358, 370, 407, 440, 466, 716, 740, 814, 895, 932, 1165, 1432, 1480, 1628, 1790, 1864, 1969, 2035, 2330, 2563, 3256, 3580, 3938, 4070, 4660, 5126, 6623, 7160, 7876, 8140, 8621, 9320, 9845, 10252, 12815, 13246, 15752, 16280, 17242, 19690, 20504, 25630, 26492, 33115, 34484, 39380, 41707, 43105, 51260, 52984, 66230, 68968, 72853, 78760, 83414, 86210, 94831, 102520, 132460, 145706, 166828, 172420, 189662, 208535, 264920, 291412, 333656, 344840, 364265, 379324, 417070, 458777, 474155, 582824, 728530, 758648, 834140, 917554, 948310, 1457060, 1543159, 1668280, 1835108, 1896620, 2293885, 2914120, 3086318, 3670216, 3793240, 4587770, 6172636, 7715795, 9175540, 12345272, 15431590, 16974749, 18351080, 30863180, 33949498, 61726360, 67898996, 84873745, 135797992, 169747490, 339494980, 678989960]

約数ペア:

[(1, 678989960), (2, 339494980), (4, 169747490), (5, 135797992), (8, 84873745), (10, 67898996), (11, 61726360), (20, 33949498), (22, 30863180), (37, 18351080), (40, 16974749), (44, 15431590), (55, 12345272), (74, 9175540), (88, 7715795), (110, 6172636), (148, 4587770), (179, 3793240), (185, 3670216), (220, 3086318), (233, 2914120), (296, 2293885), (358, 1896620), (370, 1835108), (407, 1668280), (440, 1543159), (466, 1457060), (716, 948310), (740, 917554), (814, 834140), (895, 758648), (932, 728530), (1165, 582824), (1432, 474155), (1480, 458777), (1628, 417070), (1790, 379324), (1864, 364265), (1969, 344840), (2035, 333656), (2330, 291412), (2563, 264920), (3256, 208535), (3580, 189662), (3938, 172420), (4070, 166828), (4660, 145706), (5126, 132460), (6623, 102520), (7160, 94831), (7876, 86210), (8140, 83414), (8621, 78760), (9320, 72853), (9845, 68968), (10252, 66230), (12815, 52984), (13246, 51260), (15752, 43105), (16280, 41707), (17242, 39380), (19690, 34484), (20504, 33115), (25630, 26492)]