75121215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:129

約数の個数: 96

約数和(自身を含む): 145238016

約数和(自身を除く): 70116801

約数列:

[1, 3, 5, 13, 15, 17, 31, 39, 43, 51, 65, 85, 93, 129, 155, 195, 215, 221, 255, 289, 403, 465, 527, 559, 645, 663, 731, 867, 1105, 1209, 1333, 1445, 1581, 1677, 2015, 2193, 2635, 2795, 3315, 3655, 3757, 3999, 4335, 6045, 6665, 6851, 7905, 8385, 8959, 9503, 10965, 11271, 12427, 17329, 18785, 19995, 20553, 22661, 26877, 28509, 34255, 37281, 44795, 47515, 51987, 56355, 62135, 67983, 86645, 102765, 113305, 116467, 134385, 142545, 161551, 186405, 259935, 294593, 339915, 349401, 385237, 484653, 582335, 807755, 883779, 1155711, 1472965, 1747005, 1926185, 2423265, 4418895, 5008081, 5778555, 15024243, 25040405, 75121215]

約数ペア:

[(1, 75121215), (3, 25040405), (5, 15024243), (13, 5778555), (15, 5008081), (17, 4418895), (31, 2423265), (39, 1926185), (43, 1747005), (51, 1472965), (65, 1155711), (85, 883779), (93, 807755), (129, 582335), (155, 484653), (195, 385237), (215, 349401), (221, 339915), (255, 294593), (289, 259935), (403, 186405), (465, 161551), (527, 142545), (559, 134385), (645, 116467), (663, 113305), (731, 102765), (867, 86645), (1105, 67983), (1209, 62135), (1333, 56355), (1445, 51987), (1581, 47515), (1677, 44795), (2015, 37281), (2193, 34255), (2635, 28509), (2795, 26877), (3315, 22661), (3655, 20553), (3757, 19995), (3999, 18785), (4335, 17329), (6045, 12427), (6665, 11271), (6851, 10965), (7905, 9503), (8385, 8959)]