326881360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10139}}^1$

素因数の和:10196

約数の個数: 80

約数和(自身を含む): 844945920

約数和(自身を除く): 518064560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 10139, 16120, 20278, 32240, 40556, 50695, 81112, 101390, 131807, 162224, 202780, 263614, 314309, 405560, 527228, 628618, 659035, 811120, 1054456, 1257236, 1318070, 1571545, 2108912, 2514472, 2636140, 3143090, 4086017, 5028944, 5272280, 6286180, 8172034, 10544560, 12572360, 16344068, 20430085, 25144720, 32688136, 40860170, 65376272, 81720340, 163440680, 326881360]

約数ペア:

[(1, 326881360), (2, 163440680), (4, 81720340), (5, 65376272), (8, 40860170), (10, 32688136), (13, 25144720), (16, 20430085), (20, 16344068), (26, 12572360), (31, 10544560), (40, 8172034), (52, 6286180), (62, 5272280), (65, 5028944), (80, 4086017), (104, 3143090), (124, 2636140), (130, 2514472), (155, 2108912), (208, 1571545), (248, 1318070), (260, 1257236), (310, 1054456), (403, 811120), (496, 659035), (520, 628618), (620, 527228), (806, 405560), (1040, 314309), (1240, 263614), (1612, 202780), (2015, 162224), (2480, 131807), (3224, 101390), (4030, 81112), (6448, 50695), (8060, 40556), (10139, 32240), (16120, 20278)]