51553775

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:121

約数の個数: 96

約数和(自身を含む): 87994368

約数和(自身を除く): 36440593

約数列:

[1, 5, 7, 13, 17, 25, 31, 35, 43, 65, 85, 91, 119, 155, 175, 215, 217, 221, 301, 325, 403, 425, 455, 527, 559, 595, 731, 775, 1075, 1085, 1105, 1333, 1505, 1547, 2015, 2275, 2635, 2795, 2821, 2975, 3655, 3689, 3913, 5117, 5425, 5525, 6665, 6851, 7525, 7735, 9331, 9503, 10075, 13175, 13975, 14105, 17329, 18275, 18445, 19565, 22661, 25585, 33325, 34255, 38675, 46655, 47515, 47957, 66521, 70525, 86645, 92225, 97825, 113305, 121303, 127925, 158627, 171275, 233275, 237575, 239785, 294593, 332605, 433225, 566525, 606515, 793135, 1198925, 1472965, 1663025, 2062151, 3032575, 3965675, 7364825, 10310755, 51553775]

約数ペア:

[(1, 51553775), (5, 10310755), (7, 7364825), (13, 3965675), (17, 3032575), (25, 2062151), (31, 1663025), (35, 1472965), (43, 1198925), (65, 793135), (85, 606515), (91, 566525), (119, 433225), (155, 332605), (175, 294593), (215, 239785), (217, 237575), (221, 233275), (301, 171275), (325, 158627), (403, 127925), (425, 121303), (455, 113305), (527, 97825), (559, 92225), (595, 86645), (731, 70525), (775, 66521), (1075, 47957), (1085, 47515), (1105, 46655), (1333, 38675), (1505, 34255), (1547, 33325), (2015, 25585), (2275, 22661), (2635, 19565), (2795, 18445), (2821, 18275), (2975, 17329), (3655, 14105), (3689, 13975), (3913, 13175), (5117, 10075), (5425, 9503), (5525, 9331), (6665, 7735), (6851, 7525)]