72642440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139697}}^1$

素因数の和:139721

約数の個数: 32

約数和(自身を含む): 176019480

約数和(自身を除く): 103377040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 139697, 279394, 558788, 698485, 1117576, 1396970, 1816061, 2793940, 3632122, 5587880, 7264244, 9080305, 14528488, 18160610, 36321220, 72642440]

約数ペア:

[(1, 72642440), (2, 36321220), (4, 18160610), (5, 14528488), (8, 9080305), (10, 7264244), (13, 5587880), (20, 3632122), (26, 2793940), (40, 1816061), (52, 1396970), (65, 1117576), (104, 698485), (130, 558788), (260, 279394), (520, 139697)]