28512575

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 44330496

約数和(自身を除く): 15817921

約数列:

[1, 5, 7, 13, 25, 35, 65, 83, 91, 151, 175, 325, 415, 455, 581, 755, 1057, 1079, 1963, 2075, 2275, 2905, 3775, 5285, 5395, 7553, 9815, 12533, 13741, 14525, 26425, 26975, 37765, 49075, 62665, 68705, 87731, 162929, 188825, 313325, 343525, 438655, 814645, 1140503, 2193275, 4073225, 5702515, 28512575]

約数ペア:

[(1, 28512575), (5, 5702515), (7, 4073225), (13, 2193275), (25, 1140503), (35, 814645), (65, 438655), (83, 343525), (91, 313325), (151, 188825), (175, 162929), (325, 87731), (415, 68705), (455, 62665), (581, 49075), (755, 37765), (1057, 26975), (1079, 26425), (1963, 14525), (2075, 13741), (2275, 12533), (2905, 9815), (3775, 7553), (5285, 5395)]