90903220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1721}}^1$

素因数の和:1888

約数の個数: 48

約数和(自身を含む): 202507200

約数和(自身を除く): 111603980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 695, 1390, 1721, 2641, 2780, 3442, 5282, 6884, 8605, 10564, 13205, 17210, 26410, 32699, 34420, 52820, 65398, 130796, 163495, 239219, 326990, 478438, 653980, 956876, 1196095, 2392190, 4545161, 4784380, 9090322, 18180644, 22725805, 45451610, 90903220]

約数ペア:

[(1, 90903220), (2, 45451610), (4, 22725805), (5, 18180644), (10, 9090322), (19, 4784380), (20, 4545161), (38, 2392190), (76, 1196095), (95, 956876), (139, 653980), (190, 478438), (278, 326990), (380, 239219), (556, 163495), (695, 130796), (1390, 65398), (1721, 52820), (2641, 34420), (2780, 32699), (3442, 26410), (5282, 17210), (6884, 13205), (8605, 10564)]