83221775

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{233}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 128366784

約数和(自身を除く): 45145009

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 157, 175, 233, 325, 455, 785, 1099, 1165, 1631, 2041, 2275, 3029, 3925, 5495, 5825, 8155, 10205, 14287, 15145, 21203, 27475, 36581, 40775, 51025, 71435, 75725, 106015, 182905, 256067, 357175, 475553, 530075, 914525, 1280335, 2377765, 3328871, 6401675, 11888825, 16644355, 83221775]

約数ペア:

[(1, 83221775), (5, 16644355), (7, 11888825), (13, 6401675), (25, 3328871), (35, 2377765), (65, 1280335), (91, 914525), (157, 530075), (175, 475553), (233, 357175), (325, 256067), (455, 182905), (785, 106015), (1099, 75725), (1165, 71435), (1631, 51025), (2041, 40775), (2275, 36581), (3029, 27475), (3925, 21203), (5495, 15145), (5825, 14287), (8155, 10205)]