55553240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:744

約数の個数: 64

約数和(自身を含む): 131051520

約数和(自身を除く): 75498280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 631, 710, 1240, 1262, 1420, 2201, 2524, 2840, 3155, 4402, 5048, 6310, 8804, 11005, 12620, 17608, 19561, 22010, 25240, 39122, 44020, 44801, 78244, 88040, 89602, 97805, 156488, 179204, 195610, 224005, 358408, 391220, 448010, 782440, 896020, 1388831, 1792040, 2777662, 5555324, 6944155, 11110648, 13888310, 27776620, 55553240]

約数ペア:

[(1, 55553240), (2, 27776620), (4, 13888310), (5, 11110648), (8, 6944155), (10, 5555324), (20, 2777662), (31, 1792040), (40, 1388831), (62, 896020), (71, 782440), (124, 448010), (142, 391220), (155, 358408), (248, 224005), (284, 195610), (310, 179204), (355, 156488), (568, 97805), (620, 89602), (631, 88040), (710, 78244), (1240, 44801), (1262, 44020), (1420, 39122), (2201, 25240), (2524, 22010), (2840, 19561), (3155, 17608), (4402, 12620), (5048, 11005), (6310, 8804)]