131442320

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{18461}}^1$

素因数の和:18563

約数の個数: 40

約数和(自身を含む): 309053880

約数和(自身を除く): 177611560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 18461, 36922, 73844, 92305, 147688, 184610, 295376, 369220, 738440, 1476880, 1643029, 3286058, 6572116, 8215145, 13144232, 16430290, 26288464, 32860580, 65721160, 131442320]

約数ペア:

[(1, 131442320), (2, 65721160), (4, 32860580), (5, 26288464), (8, 16430290), (10, 13144232), (16, 8215145), (20, 6572116), (40, 3286058), (80, 1643029), (89, 1476880), (178, 738440), (356, 369220), (445, 295376), (712, 184610), (890, 147688), (1424, 92305), (1780, 73844), (3560, 36922), (7120, 18461)]