28842710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 61254144

約数和(自身を除く): 32411434

約数列:

[1, 2, 5, 10, 13, 17, 26, 31, 34, 62, 65, 85, 130, 155, 170, 221, 310, 403, 421, 442, 527, 806, 842, 1054, 1105, 2015, 2105, 2210, 2635, 4030, 4210, 5270, 5473, 6851, 7157, 10946, 13051, 13702, 14314, 26102, 27365, 34255, 35785, 54730, 65255, 68510, 71570, 93041, 130510, 169663, 186082, 221867, 339326, 443734, 465205, 848315, 930410, 1109335, 1696630, 2218670, 2884271, 5768542, 14421355, 28842710]

約数ペア:

[(1, 28842710), (2, 14421355), (5, 5768542), (10, 2884271), (13, 2218670), (17, 1696630), (26, 1109335), (31, 930410), (34, 848315), (62, 465205), (65, 443734), (85, 339326), (130, 221867), (155, 186082), (170, 169663), (221, 130510), (310, 93041), (403, 71570), (421, 68510), (442, 65255), (527, 54730), (806, 35785), (842, 34255), (1054, 27365), (1105, 26102), (2015, 14314), (2105, 13702), (2210, 13051), (2635, 10946), (4030, 7157), (4210, 6851), (5270, 5473)]