981254080

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{43189}}^1$

素因数の和:43277

約数の個数: 56

約数和(自身を含む): 2369576160

約数和(自身を除く): 1388322080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 4544, 5680, 11360, 22720, 43189, 86378, 172756, 215945, 345512, 431890, 691024, 863780, 1382048, 1727560, 2764096, 3066419, 3455120, 6132838, 6910240, 12265676, 13820480, 15332095, 24531352, 30664190, 49062704, 61328380, 98125408, 122656760, 196250816, 245313520, 490627040, 981254080]

約数ペア:

[(1, 981254080), (2, 490627040), (4, 245313520), (5, 196250816), (8, 122656760), (10, 98125408), (16, 61328380), (20, 49062704), (32, 30664190), (40, 24531352), (64, 15332095), (71, 13820480), (80, 12265676), (142, 6910240), (160, 6132838), (284, 3455120), (320, 3066419), (355, 2764096), (568, 1727560), (710, 1382048), (1136, 863780), (1420, 691024), (2272, 431890), (2840, 345512), (4544, 215945), (5680, 172756), (11360, 86378), (22720, 43189)]