8967640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 22356000

約数和(自身を除く): 13388360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 229, 356, 440, 445, 458, 712, 890, 916, 979, 1145, 1780, 1832, 1958, 2290, 2519, 3560, 3916, 4580, 4895, 5038, 7832, 9160, 9790, 10076, 12595, 19580, 20152, 20381, 25190, 39160, 40762, 50380, 81524, 100760, 101905, 163048, 203810, 224191, 407620, 448382, 815240, 896764, 1120955, 1793528, 2241910, 4483820, 8967640]

約数ペア:

[(1, 8967640), (2, 4483820), (4, 2241910), (5, 1793528), (8, 1120955), (10, 896764), (11, 815240), (20, 448382), (22, 407620), (40, 224191), (44, 203810), (55, 163048), (88, 101905), (89, 100760), (110, 81524), (178, 50380), (220, 40762), (229, 39160), (356, 25190), (440, 20381), (445, 20152), (458, 19580), (712, 12595), (890, 10076), (916, 9790), (979, 9160), (1145, 7832), (1780, 5038), (1832, 4895), (1958, 4580), (2290, 3916), (2519, 3560)]