27138475

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 42219520

約数和(自身を除く): 15081045

約数列:

[1, 5, 7, 13, 25, 35, 65, 79, 91, 151, 175, 325, 395, 455, 553, 755, 1027, 1057, 1963, 1975, 2275, 2765, 3775, 5135, 5285, 7189, 9815, 11929, 13741, 13825, 25675, 26425, 35945, 49075, 59645, 68705, 83503, 155077, 179725, 298225, 343525, 417515, 775385, 1085539, 2087575, 3876925, 5427695, 27138475]

約数ペア:

[(1, 27138475), (5, 5427695), (7, 3876925), (13, 2087575), (25, 1085539), (35, 775385), (65, 417515), (79, 343525), (91, 298225), (151, 179725), (175, 155077), (325, 83503), (395, 68705), (455, 59645), (553, 49075), (755, 35945), (1027, 26425), (1057, 25675), (1963, 13825), (1975, 13741), (2275, 11929), (2765, 9815), (3775, 7189), (5135, 5285)]