31420360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25339}}^1$

素因数の和:25381

約数の個数: 32

約数和(自身を含む): 72979200

約数和(自身を除く): 41558840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 25339, 50678, 101356, 126695, 202712, 253390, 506780, 785509, 1013560, 1571018, 3142036, 3927545, 6284072, 7855090, 15710180, 31420360]

約数ペア:

[(1, 31420360), (2, 15710180), (4, 7855090), (5, 6284072), (8, 3927545), (10, 3142036), (20, 1571018), (31, 1013560), (40, 785509), (62, 506780), (124, 253390), (155, 202712), (248, 126695), (310, 101356), (620, 50678), (1240, 25339)]