645520172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1\times {\mathrm{349}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 1249382400

約数和(自身を除く): 603862228

約数列:

[1, 2, 4, 11, 22, 44, 127, 254, 331, 349, 508, 662, 698, 1324, 1396, 1397, 2794, 3641, 3839, 5588, 7282, 7678, 14564, 15356, 42037, 44323, 84074, 88646, 115519, 168148, 177292, 231038, 462076, 462407, 487553, 924814, 975106, 1270709, 1849628, 1950212, 2541418, 5082836, 14670913, 29341826, 58683652, 161380043, 322760086, 645520172]

約数ペア:

[(1, 645520172), (2, 322760086), (4, 161380043), (11, 58683652), (22, 29341826), (44, 14670913), (127, 5082836), (254, 2541418), (331, 1950212), (349, 1849628), (508, 1270709), (662, 975106), (698, 924814), (1324, 487553), (1396, 462407), (1397, 462076), (2794, 231038), (3641, 177292), (3839, 168148), (5588, 115519), (7282, 88646), (7678, 84074), (14564, 44323), (15356, 42037)]