20117282320

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2825461}}^1$

素因数の和:2825563

約数の個数: 40

約数和(自身を含む): 47298233880

約数和(自身を除く): 27180951560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 2825461, 5650922, 11301844, 14127305, 22603688, 28254610, 45207376, 56509220, 113018440, 226036880, 251466029, 502932058, 1005864116, 1257330145, 2011728232, 2514660290, 4023456464, 5029320580, 10058641160, 20117282320]

約数ペア:

[(1, 20117282320), (2, 10058641160), (4, 5029320580), (5, 4023456464), (8, 2514660290), (10, 2011728232), (16, 1257330145), (20, 1005864116), (40, 502932058), (80, 251466029), (89, 226036880), (178, 113018440), (356, 56509220), (445, 45207376), (712, 28254610), (890, 22603688), (1424, 14127305), (1780, 11301844), (3560, 5650922), (7120, 2825461)]