310938625

素因数分解:

$5^3\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 398181888

約数和(自身を除く): 87243263

約数列:

[1, 5, 25, 67, 125, 137, 271, 335, 685, 1355, 1675, 3425, 6775, 8375, 9179, 17125, 18157, 33875, 37127, 45895, 90785, 185635, 229475, 453925, 928175, 1147375, 2269625, 2487509, 4640875, 12437545, 62187725, 310938625]

約数ペア:

[(1, 310938625), (5, 62187725), (25, 12437545), (67, 4640875), (125, 2487509), (137, 2269625), (271, 1147375), (335, 928175), (685, 453925), (1355, 229475), (1675, 185635), (3425, 90785), (6775, 45895), (8375, 37127), (9179, 33875), (17125, 18157)]