85819825

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 141600312

約数和(自身を除く): 55780487

約数列:

[1, 5, 7, 13, 17, 25, 35, 49, 65, 85, 91, 119, 175, 221, 245, 317, 325, 425, 455, 595, 637, 833, 1105, 1225, 1547, 1585, 2219, 2275, 2975, 3185, 4121, 4165, 5389, 5525, 7735, 7925, 10829, 11095, 15533, 15925, 20605, 20825, 26945, 28847, 37723, 38675, 54145, 55475, 70057, 77665, 103025, 134725, 144235, 188615, 201929, 264061, 270725, 350285, 388325, 490399, 721175, 943075, 1009645, 1320305, 1751425, 2451995, 3432793, 5048225, 6601525, 12259975, 17163965, 85819825]

約数ペア:

[(1, 85819825), (5, 17163965), (7, 12259975), (13, 6601525), (17, 5048225), (25, 3432793), (35, 2451995), (49, 1751425), (65, 1320305), (85, 1009645), (91, 943075), (119, 721175), (175, 490399), (221, 388325), (245, 350285), (317, 270725), (325, 264061), (425, 201929), (455, 188615), (595, 144235), (637, 134725), (833, 103025), (1105, 77665), (1225, 70057), (1547, 55475), (1585, 54145), (2219, 38675), (2275, 37723), (2975, 28847), (3185, 26945), (4121, 20825), (4165, 20605), (5389, 15925), (5525, 15533), (7735, 11095), (7925, 10829)]