20446367440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8244503}}^1$

素因数の和:8244547

約数の個数: 40

約数和(自身を含む): 49071287808

約数和(自身を除く): 28624920368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8244503, 16489006, 32978012, 41222515, 65956024, 82445030, 131912048, 164890060, 255579593, 329780120, 511159186, 659560240, 1022318372, 1277897965, 2044636744, 2555795930, 4089273488, 5111591860, 10223183720, 20446367440]

約数ペア:

[(1, 20446367440), (2, 10223183720), (4, 5111591860), (5, 4089273488), (8, 2555795930), (10, 2044636744), (16, 1277897965), (20, 1022318372), (31, 659560240), (40, 511159186), (62, 329780120), (80, 255579593), (124, 164890060), (155, 131912048), (248, 82445030), (310, 65956024), (496, 41222515), (620, 32978012), (1240, 16489006), (2480, 8244503)]