1635140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 3904320

約数和(自身を除く): 2269180

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 331, 380, 494, 662, 988, 1235, 1324, 1655, 2470, 3310, 4303, 4940, 6289, 6620, 8606, 12578, 17212, 21515, 25156, 31445, 43030, 62890, 81757, 86060, 125780, 163514, 327028, 408785, 817570, 1635140]

約数ペア:

[(1, 1635140), (2, 817570), (4, 408785), (5, 327028), (10, 163514), (13, 125780), (19, 86060), (20, 81757), (26, 62890), (38, 43030), (52, 31445), (65, 25156), (76, 21515), (95, 17212), (130, 12578), (190, 8606), (247, 6620), (260, 6289), (331, 4940), (380, 4303), (494, 3310), (662, 2470), (988, 1655), (1235, 1324)]