71783380

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^2\times {\mathrm{521}}^1$

素因数の和:696

約数の個数: 36

約数和(自身を含む): 152876052

約数和(自身を除く): 81092672

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 521, 830, 1042, 1660, 2084, 2605, 5210, 6889, 10420, 13778, 27556, 34445, 43243, 68890, 86486, 137780, 172972, 216215, 432430, 864860, 3589169, 7178338, 14356676, 17945845, 35891690, 71783380]

約数ペア:

[(1, 71783380), (2, 35891690), (4, 17945845), (5, 14356676), (10, 7178338), (20, 3589169), (83, 864860), (166, 432430), (332, 216215), (415, 172972), (521, 137780), (830, 86486), (1042, 68890), (1660, 43243), (2084, 34445), (2605, 27556), (5210, 13778), (6889, 10420)]