639560

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 1468800

約数和(自身を除く): 829240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 271, 295, 472, 542, 590, 1084, 1180, 1355, 2168, 2360, 2710, 5420, 10840, 15989, 31978, 63956, 79945, 127912, 159890, 319780, 639560]

約数ペア:

[(1, 639560), (2, 319780), (4, 159890), (5, 127912), (8, 79945), (10, 63956), (20, 31978), (40, 15989), (59, 10840), (118, 5420), (236, 2710), (271, 2360), (295, 2168), (472, 1355), (542, 1180), (590, 1084)]