1978528040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{4813}}^1$

素因数の和:5106

約数の個数: 64

約数和(自身を含む): 4575225600

約数和(自身を除く): 2596697560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 239, 344, 430, 478, 860, 956, 1195, 1720, 1912, 2390, 4780, 4813, 9560, 9626, 10277, 19252, 20554, 24065, 38504, 41108, 48130, 51385, 82216, 96260, 102770, 192520, 205540, 206959, 411080, 413918, 827836, 1034795, 1150307, 1655672, 2069590, 2300614, 4139180, 4601228, 5751535, 8278360, 9202456, 11503070, 23006140, 46012280, 49463201, 98926402, 197852804, 247316005, 395705608, 494632010, 989264020, 1978528040]

約数ペア:

[(1, 1978528040), (2, 989264020), (4, 494632010), (5, 395705608), (8, 247316005), (10, 197852804), (20, 98926402), (40, 49463201), (43, 46012280), (86, 23006140), (172, 11503070), (215, 9202456), (239, 8278360), (344, 5751535), (430, 4601228), (478, 4139180), (860, 2300614), (956, 2069590), (1195, 1655672), (1720, 1150307), (1912, 1034795), (2390, 827836), (4780, 413918), (4813, 411080), (9560, 206959), (9626, 205540), (10277, 192520), (19252, 102770), (20554, 96260), (24065, 82216), (38504, 51385), (41108, 48130)]