28711020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36809}}^1$

素因数の和:36834

約数の個数: 48

約数和(自身を含む): 86577120

約数和(自身を除く): 57866100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 36809, 73618, 110427, 147236, 184045, 220854, 368090, 441708, 478517, 552135, 736180, 957034, 1104270, 1435551, 1914068, 2208540, 2392585, 2871102, 4785170, 5742204, 7177755, 9570340, 14355510, 28711020]

約数ペア:

[(1, 28711020), (2, 14355510), (3, 9570340), (4, 7177755), (5, 5742204), (6, 4785170), (10, 2871102), (12, 2392585), (13, 2208540), (15, 1914068), (20, 1435551), (26, 1104270), (30, 957034), (39, 736180), (52, 552135), (60, 478517), (65, 441708), (78, 368090), (130, 220854), (156, 184045), (195, 147236), (260, 110427), (390, 73618), (780, 36809)]