81993890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:467

約数の個数: 64

約数和(自身を含む): 172160640

約数和(自身を除く): 90166750

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 163, 170, 187, 269, 326, 374, 538, 815, 935, 1345, 1630, 1793, 1870, 2690, 2771, 2959, 3586, 4573, 5542, 5918, 8965, 9146, 13855, 14795, 17930, 22865, 27710, 29590, 30481, 43847, 45730, 50303, 60962, 87694, 100606, 152405, 219235, 251515, 304810, 438470, 482317, 503030, 745399, 964634, 1490798, 2411585, 3726995, 4823170, 7453990, 8199389, 16398778, 40996945, 81993890]

約数ペア:

[(1, 81993890), (2, 40996945), (5, 16398778), (10, 8199389), (11, 7453990), (17, 4823170), (22, 3726995), (34, 2411585), (55, 1490798), (85, 964634), (110, 745399), (163, 503030), (170, 482317), (187, 438470), (269, 304810), (326, 251515), (374, 219235), (538, 152405), (815, 100606), (935, 87694), (1345, 60962), (1630, 50303), (1793, 45730), (1870, 43847), (2690, 30481), (2771, 29590), (2959, 27710), (3586, 22865), (4573, 17930), (5542, 14795), (5918, 13855), (8965, 9146)]