64487440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26003}}^1$

素因数の和:26047

約数の個数: 40

約数和(自身を含む): 154775808

約数和(自身を除く): 90288368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26003, 52006, 104012, 130015, 208024, 260030, 416048, 520060, 806093, 1040120, 1612186, 2080240, 3224372, 4030465, 6448744, 8060930, 12897488, 16121860, 32243720, 64487440]

約数ペア:

[(1, 64487440), (2, 32243720), (4, 16121860), (5, 12897488), (8, 8060930), (10, 6448744), (16, 4030465), (20, 3224372), (31, 2080240), (40, 1612186), (62, 1040120), (80, 806093), (124, 520060), (155, 416048), (248, 260030), (310, 208024), (496, 130015), (620, 104012), (1240, 52006), (2480, 26003)]