19712933990

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1\times {\mathrm{88801}}^1$

素因数の和:89168

約数の個数: 32

約数和(自身を含む): 36060716160

約数和(自身を除く): 16347782170

約数列:

[1, 2, 5, 10, 79, 158, 281, 395, 562, 790, 1405, 2810, 22199, 44398, 88801, 110995, 177602, 221990, 444005, 888010, 7015279, 14030558, 24953081, 35076395, 49906162, 70152790, 124765405, 249530810, 1971293399, 3942586798, 9856466995, 19712933990]

約数ペア:

[(1, 19712933990), (2, 9856466995), (5, 3942586798), (10, 1971293399), (79, 249530810), (158, 124765405), (281, 70152790), (395, 49906162), (562, 35076395), (790, 24953081), (1405, 14030558), (2810, 7015279), (22199, 888010), (44398, 444005), (88801, 221990), (110995, 177602)]