1989291250

素因数分解:

$2^1\times 5^4\times {\mathrm{29}}^1\times {\mathrm{54877}}^1$

素因数の和:54928

約数の個数: 40

約数和(自身を含む): 3857374620

約数和(自身を除く): 1868083370

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 125, 145, 250, 290, 625, 725, 1250, 1450, 3625, 7250, 18125, 36250, 54877, 109754, 274385, 548770, 1371925, 1591433, 2743850, 3182866, 6859625, 7957165, 13719250, 15914330, 34298125, 39785825, 68596250, 79571650, 198929125, 397858250, 994645625, 1989291250]

約数ペア:

[(1, 1989291250), (2, 994645625), (5, 397858250), (10, 198929125), (25, 79571650), (29, 68596250), (50, 39785825), (58, 34298125), (125, 15914330), (145, 13719250), (250, 7957165), (290, 6859625), (625, 3182866), (725, 2743850), (1250, 1591433), (1450, 1371925), (3625, 548770), (7250, 274385), (18125, 109754), (36250, 54877)]