20128605040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8116373}}^1$

素因数の和:8116417

約数の個数: 40

約数和(自身を含む): 48308658048

約数和(自身を除く): 28180053008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8116373, 16232746, 32465492, 40581865, 64930984, 81163730, 129861968, 162327460, 251607563, 324654920, 503215126, 649309840, 1006430252, 1258037815, 2012860504, 2516075630, 4025721008, 5032151260, 10064302520, 20128605040]

約数ペア:

[(1, 20128605040), (2, 10064302520), (4, 5032151260), (5, 4025721008), (8, 2516075630), (10, 2012860504), (16, 1258037815), (20, 1006430252), (31, 649309840), (40, 503215126), (62, 324654920), (80, 251607563), (124, 162327460), (155, 129861968), (248, 81163730), (310, 64930984), (496, 40581865), (620, 32465492), (1240, 16232746), (2480, 8116373)]