489234020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{31321}}^1$

素因数の和:31412

約数の個数: 48

約数和(自身を含む): 1136612736

約数和(自身を除く): 647378716

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 7810, 15620, 31321, 62642, 125284, 156605, 313210, 344531, 626420, 689062, 1378124, 1722655, 2223791, 3445310, 4447582, 6890620, 8895164, 11118955, 22237910, 24461701, 44475820, 48923402, 97846804, 122308505, 244617010, 489234020]

約数ペア:

[(1, 489234020), (2, 244617010), (4, 122308505), (5, 97846804), (10, 48923402), (11, 44475820), (20, 24461701), (22, 22237910), (44, 11118955), (55, 8895164), (71, 6890620), (110, 4447582), (142, 3445310), (220, 2223791), (284, 1722655), (355, 1378124), (710, 689062), (781, 626420), (1420, 344531), (1562, 313210), (3124, 156605), (3905, 125284), (7810, 62642), (15620, 31321)]