31397340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40253}}^1$

素因数の和:40278

約数の個数: 48

約数和(自身を含む): 94677408

約数和(自身を除く): 63280068

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, 40253, 80506, 120759, 161012, 201265, 241518, 402530, 483036, 523289, 603795, 805060, 1046578, 1207590, 1569867, 2093156, 2415180, 2616445, 3139734, 5232890, 6279468, 7849335, 10465780, 15698670, 31397340]

約数ペア:

[(1, 31397340), (2, 15698670), (3, 10465780), (4, 7849335), (5, 6279468), (6, 5232890), (10, 3139734), (12, 2616445), (13, 2415180), (15, 2093156), (20, 1569867), (26, 1207590), (30, 1046578), (39, 805060), (52, 603795), (60, 523289), (65, 483036), (78, 402530), (130, 241518), (156, 201265), (195, 161012), (260, 120759), (390, 80506), (780, 40253)]