163842440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1861}}^1$

素因数の和:1974

約数の個数: 64

約数和(自身を含む): 386104320

約数和(自身を除く): 222261880

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, 1861, 2201, 2840, 3722, 4402, 7444, 8804, 9305, 11005, 14888, 17608, 18610, 22010, 37220, 44020, 57691, 74440, 88040, 115382, 132131, 230764, 264262, 288455, 461528, 528524, 576910, 660655, 1057048, 1153820, 1321310, 2307640, 2642620, 4096061, 5285240, 8192122, 16384244, 20480305, 32768488, 40960610, 81921220, 163842440]

約数ペア:

[(1, 163842440), (2, 81921220), (4, 40960610), (5, 32768488), (8, 20480305), (10, 16384244), (20, 8192122), (31, 5285240), (40, 4096061), (62, 2642620), (71, 2307640), (124, 1321310), (142, 1153820), (155, 1057048), (248, 660655), (284, 576910), (310, 528524), (355, 461528), (568, 288455), (620, 264262), (710, 230764), (1240, 132131), (1420, 115382), (1861, 88040), (2201, 74440), (2840, 57691), (3722, 44020), (4402, 37220), (7444, 22010), (8804, 18610), (9305, 17608), (11005, 14888)]