315969680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{303817}}^1$

素因数の和:303843

約数の個数: 40

約数和(自身を含む): 791142072

約数和(自身を除く): 475172392

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 303817, 607634, 1215268, 1519085, 2430536, 3038170, 3949621, 4861072, 6076340, 7899242, 12152680, 15798484, 19748105, 24305360, 31596968, 39496210, 63193936, 78992420, 157984840, 315969680]

約数ペア:

[(1, 315969680), (2, 157984840), (4, 78992420), (5, 63193936), (8, 39496210), (10, 31596968), (13, 24305360), (16, 19748105), (20, 15798484), (26, 12152680), (40, 7899242), (52, 6076340), (65, 4861072), (80, 3949621), (104, 3038170), (130, 2430536), (208, 1519085), (260, 1215268), (520, 607634), (1040, 303817)]