31940320

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2243}}^1$

素因数の和:2347

約数の個数: 48

約数和(自身を含む): 76340880

約数和(自身を除く): 44400560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2243, 2848, 3560, 4486, 7120, 8972, 11215, 14240, 17944, 22430, 35888, 44860, 71776, 89720, 179440, 199627, 358880, 399254, 798508, 998135, 1597016, 1996270, 3194032, 3992540, 6388064, 7985080, 15970160, 31940320]

約数ペア:

[(1, 31940320), (2, 15970160), (4, 7985080), (5, 6388064), (8, 3992540), (10, 3194032), (16, 1996270), (20, 1597016), (32, 998135), (40, 798508), (80, 399254), (89, 358880), (160, 199627), (178, 179440), (356, 89720), (445, 71776), (712, 44860), (890, 35888), (1424, 22430), (1780, 17944), (2243, 14240), (2848, 11215), (3560, 8972), (4486, 7120)]