840097925

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 1132552512

約数和(自身を除く): 292454587

約数列:

[1, 5, 17, 25, 67, 85, 163, 181, 335, 425, 815, 905, 1139, 1675, 2771, 3077, 4075, 4525, 5695, 10921, 12127, 13855, 15385, 28475, 29503, 54605, 60635, 69275, 76925, 147515, 185657, 206159, 273025, 303175, 501551, 737575, 928285, 1030795, 1976701, 2507755, 4641425, 5153975, 9883505, 12538775, 33603917, 49417525, 168019585, 840097925]

約数ペア:

[(1, 840097925), (5, 168019585), (17, 49417525), (25, 33603917), (67, 12538775), (85, 9883505), (163, 5153975), (181, 4641425), (335, 2507755), (425, 1976701), (815, 1030795), (905, 928285), (1139, 737575), (1675, 501551), (2771, 303175), (3077, 273025), (4075, 206159), (4525, 185657), (5695, 147515), (10921, 76925), (12127, 69275), (13855, 60635), (15385, 54605), (28475, 29503)]