20403711975

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3571}}^1$

素因数の和:3721

約数の個数: 96

約数和(自身を含む): 36355530240

約数和(自身を除く): 15951818265

約数列:

[1, 3, 5, 15, 25, 29, 37, 71, 75, 87, 111, 145, 185, 213, 355, 435, 555, 725, 925, 1065, 1073, 1775, 2059, 2175, 2627, 2775, 3219, 3571, 5325, 5365, 6177, 7881, 10295, 10713, 13135, 16095, 17855, 26825, 30885, 39405, 51475, 53565, 65675, 76183, 80475, 89275, 103559, 132127, 154425, 197025, 228549, 253541, 267825, 310677, 380915, 396381, 517795, 660635, 760623, 1142745, 1267705, 1553385, 1904575, 1981905, 2588975, 3303175, 3803115, 3831683, 5713725, 6338525, 7352689, 7766925, 9381017, 9909525, 11495049, 19015575, 19158415, 22058067, 28143051, 36763445, 46905085, 57475245, 95792075, 110290335, 140715255, 183817225, 234525425, 272049493, 287376225, 551451675, 703576275, 816148479, 1360247465, 4080742395, 6801237325, 20403711975]

約数ペア:

[(1, 20403711975), (3, 6801237325), (5, 4080742395), (15, 1360247465), (25, 816148479), (29, 703576275), (37, 551451675), (71, 287376225), (75, 272049493), (87, 234525425), (111, 183817225), (145, 140715255), (185, 110290335), (213, 95792075), (355, 57475245), (435, 46905085), (555, 36763445), (725, 28143051), (925, 22058067), (1065, 19158415), (1073, 19015575), (1775, 11495049), (2059, 9909525), (2175, 9381017), (2627, 7766925), (2775, 7352689), (3219, 6338525), (3571, 5713725), (5325, 3831683), (5365, 3803115), (6177, 3303175), (7881, 2588975), (10295, 1981905), (10713, 1904575), (13135, 1553385), (16095, 1267705), (17855, 1142745), (26825, 760623), (30885, 660635), (39405, 517795), (51475, 396381), (53565, 380915), (65675, 310677), (76183, 267825), (80475, 253541), (89275, 228549), (103559, 197025), (132127, 154425)]