521820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 1712256

約数和(自身を除く): 1190436

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 223, 234, 260, 390, 446, 468, 585, 669, 780, 892, 1115, 1170, 1338, 2007, 2230, 2340, 2676, 2899, 3345, 4014, 4460, 5798, 6690, 8028, 8697, 10035, 11596, 13380, 14495, 17394, 20070, 26091, 28990, 34788, 40140, 43485, 52182, 57980, 86970, 104364, 130455, 173940, 260910, 521820]

約数ペア:

[(1, 521820), (2, 260910), (3, 173940), (4, 130455), (5, 104364), (6, 86970), (9, 57980), (10, 52182), (12, 43485), (13, 40140), (15, 34788), (18, 28990), (20, 26091), (26, 20070), (30, 17394), (36, 14495), (39, 13380), (45, 11596), (52, 10035), (60, 8697), (65, 8028), (78, 6690), (90, 5798), (117, 4460), (130, 4014), (156, 3345), (180, 2899), (195, 2676), (223, 2340), (234, 2230), (260, 2007), (390, 1338), (446, 1170), (468, 1115), (585, 892), (669, 780)]