669947125

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 930009600

約数和(自身を除く): 260062475

約数列:

[1, 5, 19, 25, 29, 71, 95, 125, 137, 145, 355, 475, 551, 685, 725, 1349, 1775, 2059, 2375, 2603, 2755, 3425, 3625, 3973, 6745, 8875, 9727, 10295, 13015, 13775, 17125, 19865, 33725, 39121, 48635, 51475, 65075, 68875, 75487, 99325, 168625, 184813, 195605, 243175, 257375, 282083, 325375, 377435, 496625, 924065, 978025, 1215875, 1410415, 1887175, 4620325, 4890125, 5359577, 7052075, 9435875, 23101625, 26797885, 35260375, 133989425, 669947125]

約数ペア:

[(1, 669947125), (5, 133989425), (19, 35260375), (25, 26797885), (29, 23101625), (71, 9435875), (95, 7052075), (125, 5359577), (137, 4890125), (145, 4620325), (355, 1887175), (475, 1410415), (551, 1215875), (685, 978025), (725, 924065), (1349, 496625), (1775, 377435), (2059, 325375), (2375, 282083), (2603, 257375), (2755, 243175), (3425, 195605), (3625, 184813), (3973, 168625), (6745, 99325), (8875, 75487), (9727, 68875), (10295, 65075), (13015, 51475), (13775, 48635), (17125, 39121), (19865, 33725)]