87173840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{769}}^1$

素因数の和:904

約数の個数: 80

約数和(自身を含む): 220558800

約数和(自身を除く): 133384960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 109, 130, 208, 218, 260, 436, 520, 545, 769, 872, 1040, 1090, 1417, 1538, 1744, 2180, 2834, 3076, 3845, 4360, 5668, 6152, 7085, 7690, 8720, 9997, 11336, 12304, 14170, 15380, 19994, 22672, 28340, 30760, 39988, 49985, 56680, 61520, 79976, 83821, 99970, 113360, 159952, 167642, 199940, 335284, 399880, 419105, 670568, 799760, 838210, 1089673, 1341136, 1676420, 2179346, 3352840, 4358692, 5448365, 6705680, 8717384, 10896730, 17434768, 21793460, 43586920, 87173840]

約数ペア:

[(1, 87173840), (2, 43586920), (4, 21793460), (5, 17434768), (8, 10896730), (10, 8717384), (13, 6705680), (16, 5448365), (20, 4358692), (26, 3352840), (40, 2179346), (52, 1676420), (65, 1341136), (80, 1089673), (104, 838210), (109, 799760), (130, 670568), (208, 419105), (218, 399880), (260, 335284), (436, 199940), (520, 167642), (545, 159952), (769, 113360), (872, 99970), (1040, 83821), (1090, 79976), (1417, 61520), (1538, 56680), (1744, 49985), (2180, 39988), (2834, 30760), (3076, 28340), (3845, 22672), (4360, 19994), (5668, 15380), (6152, 14170), (7085, 12304), (7690, 11336), (8720, 9997)]