158560040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1801}}^1$

素因数の和:1914

約数の個数: 64

約数和(自身を含む): 373662720

約数和(自身を除く): 215102680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 1240, 1420, 1801, 2201, 2840, 3602, 4402, 7204, 8804, 9005, 11005, 14408, 17608, 18010, 22010, 36020, 44020, 55831, 72040, 88040, 111662, 127871, 223324, 255742, 279155, 446648, 511484, 558310, 639355, 1022968, 1116620, 1278710, 2233240, 2557420, 3964001, 5114840, 7928002, 15856004, 19820005, 31712008, 39640010, 79280020, 158560040]

約数ペア:

[(1, 158560040), (2, 79280020), (4, 39640010), (5, 31712008), (8, 19820005), (10, 15856004), (20, 7928002), (31, 5114840), (40, 3964001), (62, 2557420), (71, 2233240), (124, 1278710), (142, 1116620), (155, 1022968), (248, 639355), (284, 558310), (310, 511484), (355, 446648), (568, 279155), (620, 255742), (710, 223324), (1240, 127871), (1420, 111662), (1801, 88040), (2201, 72040), (2840, 55831), (3602, 44020), (4402, 36020), (7204, 22010), (8804, 18010), (9005, 17608), (11005, 14408)]