78615160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 205128000

約数和(自身を除く): 126512840

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 73, 76, 95, 104, 109, 130, 146, 152, 190, 218, 247, 260, 292, 365, 380, 436, 494, 520, 545, 584, 730, 760, 872, 949, 988, 1090, 1235, 1387, 1417, 1460, 1898, 1976, 2071, 2180, 2470, 2774, 2834, 2920, 3796, 4142, 4360, 4745, 4940, 5548, 5668, 6935, 7085, 7592, 7957, 8284, 9490, 9880, 10355, 11096, 11336, 13870, 14170, 15914, 16568, 18031, 18980, 20710, 26923, 27740, 28340, 31828, 36062, 37960, 39785, 41420, 53846, 55480, 56680, 63656, 72124, 79570, 82840, 90155, 103441, 107692, 134615, 144248, 151183, 159140, 180310, 206882, 215384, 269230, 302366, 318280, 360620, 413764, 517205, 538460, 604732, 721240, 755915, 827528, 1034410, 1076920, 1209464, 1511830, 1965379, 2068820, 3023660, 3930758, 4137640, 6047320, 7861516, 9826895, 15723032, 19653790, 39307580, 78615160]

約数ペア:

[(1, 78615160), (2, 39307580), (4, 19653790), (5, 15723032), (8, 9826895), (10, 7861516), (13, 6047320), (19, 4137640), (20, 3930758), (26, 3023660), (38, 2068820), (40, 1965379), (52, 1511830), (65, 1209464), (73, 1076920), (76, 1034410), (95, 827528), (104, 755915), (109, 721240), (130, 604732), (146, 538460), (152, 517205), (190, 413764), (218, 360620), (247, 318280), (260, 302366), (292, 269230), (365, 215384), (380, 206882), (436, 180310), (494, 159140), (520, 151183), (545, 144248), (584, 134615), (730, 107692), (760, 103441), (872, 90155), (949, 82840), (988, 79570), (1090, 72124), (1235, 63656), (1387, 56680), (1417, 55480), (1460, 53846), (1898, 41420), (1976, 39785), (2071, 37960), (2180, 36062), (2470, 31828), (2774, 28340), (2834, 27740), (2920, 26923), (3796, 20710), (4142, 18980), (4360, 18031), (4745, 16568), (4940, 15914), (5548, 14170), (5668, 13870), (6935, 11336), (7085, 11096), (7592, 10355), (7957, 9880), (8284, 9490)]