721000748

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{1877}}^1$

素因数の和:2066

約数の個数: 48

約数和(自身を含む): 1391372640

約数和(自身を除く): 670371892

約数列:

[1, 2, 4, 13, 26, 52, 83, 89, 166, 178, 332, 356, 1079, 1157, 1877, 2158, 2314, 3754, 4316, 4628, 7387, 7508, 14774, 24401, 29548, 48802, 96031, 97604, 155791, 167053, 192062, 311582, 334106, 384124, 623164, 668212, 2025283, 2171689, 4050566, 4343378, 8101132, 8686756, 13865399, 27730798, 55461596, 180250187, 360500374, 721000748]

約数ペア:

[(1, 721000748), (2, 360500374), (4, 180250187), (13, 55461596), (26, 27730798), (52, 13865399), (83, 8686756), (89, 8101132), (166, 4343378), (178, 4050566), (332, 2171689), (356, 2025283), (1079, 668212), (1157, 623164), (1877, 384124), (2158, 334106), (2314, 311582), (3754, 192062), (4316, 167053), (4628, 155791), (7387, 97604), (7508, 96031), (14774, 48802), (24401, 29548)]