311907640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{11621}}^1$

素因数の和:11704

約数の個数: 64

約数和(自身を含む): 778209120

約数和(自身を除く): 466301480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 1220, 1342, 2440, 2684, 3355, 5368, 6710, 11621, 13420, 23242, 26840, 46484, 58105, 92968, 116210, 127831, 232420, 255662, 464840, 511324, 639155, 708881, 1022648, 1278310, 1417762, 2556620, 2835524, 3544405, 5113240, 5671048, 7088810, 7797691, 14177620, 15595382, 28355240, 31190764, 38988455, 62381528, 77976910, 155953820, 311907640]

約数ペア:

[(1, 311907640), (2, 155953820), (4, 77976910), (5, 62381528), (8, 38988455), (10, 31190764), (11, 28355240), (20, 15595382), (22, 14177620), (40, 7797691), (44, 7088810), (55, 5671048), (61, 5113240), (88, 3544405), (110, 2835524), (122, 2556620), (220, 1417762), (244, 1278310), (305, 1022648), (440, 708881), (488, 639155), (610, 511324), (671, 464840), (1220, 255662), (1342, 232420), (2440, 127831), (2684, 116210), (3355, 92968), (5368, 58105), (6710, 46484), (11621, 26840), (13420, 23242)]