68988825

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 130330200

約数和(自身を除く): 61341375

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 97, 109, 145, 225, 261, 291, 327, 435, 485, 545, 725, 873, 981, 1305, 1455, 1635, 2175, 2425, 2725, 2813, 3161, 4365, 4905, 6525, 7275, 8175, 8439, 9483, 10573, 14065, 15805, 21825, 24525, 25317, 28449, 31719, 42195, 47415, 52865, 70325, 79025, 95157, 126585, 142245, 158595, 210975, 237075, 264325, 306617, 475785, 632925, 711225, 792975, 919851, 1533085, 2378925, 2759553, 4599255, 7665425, 13797765, 22996275, 68988825]

約数ペア:

[(1, 68988825), (3, 22996275), (5, 13797765), (9, 7665425), (15, 4599255), (25, 2759553), (29, 2378925), (45, 1533085), (75, 919851), (87, 792975), (97, 711225), (109, 632925), (145, 475785), (225, 306617), (261, 264325), (291, 237075), (327, 210975), (435, 158595), (485, 142245), (545, 126585), (725, 95157), (873, 79025), (981, 70325), (1305, 52865), (1455, 47415), (1635, 42195), (2175, 31719), (2425, 28449), (2725, 25317), (2813, 24525), (3161, 21825), (4365, 15805), (4905, 14065), (6525, 10573), (7275, 9483), (8175, 8439)]