85128975

素因数分解:

$3^9\times 5^2\times {\mathrm{173}}^1$

素因数の和:210

約数の個数: 60

約数和(自身を含む): 159252456

約数和(自身を除く): 74123481

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 173, 225, 243, 405, 519, 675, 729, 865, 1215, 1557, 2025, 2187, 2595, 3645, 4325, 4671, 6075, 6561, 7785, 10935, 12975, 14013, 18225, 19683, 23355, 32805, 38925, 42039, 54675, 70065, 98415, 116775, 126117, 164025, 210195, 350325, 378351, 492075, 630585, 1050975, 1135053, 1891755, 3152925, 3405159, 5675265, 9458775, 17025795, 28376325, 85128975]

約数ペア:

[(1, 85128975), (3, 28376325), (5, 17025795), (9, 9458775), (15, 5675265), (25, 3405159), (27, 3152925), (45, 1891755), (75, 1135053), (81, 1050975), (135, 630585), (173, 492075), (225, 378351), (243, 350325), (405, 210195), (519, 164025), (675, 126117), (729, 116775), (865, 98415), (1215, 70065), (1557, 54675), (2025, 42039), (2187, 38925), (2595, 32805), (3645, 23355), (4325, 19683), (4671, 18225), (6075, 14013), (6561, 12975), (7785, 10935)]