81789160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{929}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 192844800

約数和(自身を除く): 111055640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 929, 1240, 1420, 1858, 2201, 2840, 3716, 4402, 4645, 7432, 8804, 9290, 11005, 17608, 18580, 22010, 28799, 37160, 44020, 57598, 65959, 88040, 115196, 131918, 143995, 230392, 263836, 287990, 329795, 527672, 575980, 659590, 1151960, 1319180, 2044729, 2638360, 4089458, 8178916, 10223645, 16357832, 20447290, 40894580, 81789160]

約数ペア:

[(1, 81789160), (2, 40894580), (4, 20447290), (5, 16357832), (8, 10223645), (10, 8178916), (20, 4089458), (31, 2638360), (40, 2044729), (62, 1319180), (71, 1151960), (124, 659590), (142, 575980), (155, 527672), (248, 329795), (284, 287990), (310, 263836), (355, 230392), (568, 143995), (620, 131918), (710, 115196), (929, 88040), (1240, 65959), (1420, 57598), (1858, 44020), (2201, 37160), (2840, 28799), (3716, 22010), (4402, 18580), (4645, 17608), (7432, 11005), (8804, 9290)]