745679925

素因数分解:

$3^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{21661}}^1$

素因数の和:21700

約数の個数: 60

約数和(自身を含む): 1462574916

約数和(自身を除く): 716894991

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 153, 225, 255, 405, 425, 459, 675, 765, 1275, 1377, 2025, 2295, 3825, 6885, 11475, 21661, 34425, 64983, 108305, 194949, 324915, 368237, 541525, 584847, 974745, 1104711, 1624575, 1754541, 1841185, 2924235, 3314133, 4873725, 5523555, 8772705, 9205925, 9942399, 14621175, 16570665, 27617775, 29827197, 43863525, 49711995, 82853325, 149135985, 248559975, 745679925]

約数ペア:

[(1, 745679925), (3, 248559975), (5, 149135985), (9, 82853325), (15, 49711995), (17, 43863525), (25, 29827197), (27, 27617775), (45, 16570665), (51, 14621175), (75, 9942399), (81, 9205925), (85, 8772705), (135, 5523555), (153, 4873725), (225, 3314133), (255, 2924235), (405, 1841185), (425, 1754541), (459, 1624575), (675, 1104711), (765, 974745), (1275, 584847), (1377, 541525), (2025, 368237), (2295, 324915), (3825, 194949), (6885, 108305), (11475, 64983), (21661, 34425)]