20798310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3137}}^1$

素因数の和:3177

約数の個数: 64

約数和(自身を含む): 56935872

約数和(自身を除く): 36137562

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3137, 3315, 6274, 6630, 9411, 15685, 18822, 31370, 40781, 47055, 53329, 81562, 94110, 106658, 122343, 159987, 203905, 244686, 266645, 319974, 407810, 533290, 611715, 693277, 799935, 1223430, 1386554, 1599870, 2079831, 3466385, 4159662, 6932770, 10399155, 20798310]

約数ペア:

[(1, 20798310), (2, 10399155), (3, 6932770), (5, 4159662), (6, 3466385), (10, 2079831), (13, 1599870), (15, 1386554), (17, 1223430), (26, 799935), (30, 693277), (34, 611715), (39, 533290), (51, 407810), (65, 319974), (78, 266645), (85, 244686), (102, 203905), (130, 159987), (170, 122343), (195, 106658), (221, 94110), (255, 81562), (390, 53329), (442, 47055), (510, 40781), (663, 31370), (1105, 18822), (1326, 15685), (2210, 9411), (3137, 6630), (3315, 6274)]