8986900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 21776384

約数和(自身を除く): 12789484

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 223, 260, 310, 325, 403, 446, 620, 650, 775, 806, 892, 1115, 1300, 1550, 1612, 2015, 2230, 2899, 3100, 4030, 4460, 5575, 5798, 6913, 8060, 10075, 11150, 11596, 13826, 14495, 20150, 22300, 27652, 28990, 34565, 40300, 57980, 69130, 72475, 89869, 138260, 144950, 172825, 179738, 289900, 345650, 359476, 449345, 691300, 898690, 1797380, 2246725, 4493450, 8986900]

約数ペア:

[(1, 8986900), (2, 4493450), (4, 2246725), (5, 1797380), (10, 898690), (13, 691300), (20, 449345), (25, 359476), (26, 345650), (31, 289900), (50, 179738), (52, 172825), (62, 144950), (65, 138260), (100, 89869), (124, 72475), (130, 69130), (155, 57980), (223, 40300), (260, 34565), (310, 28990), (325, 27652), (403, 22300), (446, 20150), (620, 14495), (650, 13826), (775, 11596), (806, 11150), (892, 10075), (1115, 8060), (1300, 6913), (1550, 5798), (1612, 5575), (2015, 4460), (2230, 4030), (2899, 3100)]