80505700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:637

約数の個数: 72

約数和(自身を含む): 192175200

約数和(自身を除く): 111669500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 163, 220, 275, 326, 449, 550, 652, 815, 898, 1100, 1630, 1793, 1796, 2245, 3260, 3586, 4075, 4490, 4939, 7172, 8150, 8965, 8980, 9878, 11225, 16300, 17930, 19756, 22450, 24695, 35860, 44825, 44900, 49390, 73187, 89650, 98780, 123475, 146374, 179300, 246950, 292748, 365935, 493900, 731870, 805057, 1463740, 1610114, 1829675, 3220228, 3659350, 4025285, 7318700, 8050570, 16101140, 20126425, 40252850, 80505700]

約数ペア:

[(1, 80505700), (2, 40252850), (4, 20126425), (5, 16101140), (10, 8050570), (11, 7318700), (20, 4025285), (22, 3659350), (25, 3220228), (44, 1829675), (50, 1610114), (55, 1463740), (100, 805057), (110, 731870), (163, 493900), (220, 365935), (275, 292748), (326, 246950), (449, 179300), (550, 146374), (652, 123475), (815, 98780), (898, 89650), (1100, 73187), (1630, 49390), (1793, 44900), (1796, 44825), (2245, 35860), (3260, 24695), (3586, 22450), (4075, 19756), (4490, 17930), (4939, 16300), (7172, 11225), (8150, 9878), (8965, 8980)]