20160918925

素因数分解:

$5^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{383}}^1\times {\mathrm{443}}^1$

素因数の和:947

約数の個数: 72

約数和(自身を含む): 29524110336

約数和(自身を除く): 9363191411

約数列:

[1, 5, 7, 25, 35, 49, 97, 175, 245, 383, 443, 485, 679, 1225, 1915, 2215, 2425, 2681, 3101, 3395, 4753, 9575, 11075, 13405, 15505, 16975, 18767, 21707, 23765, 37151, 42971, 67025, 77525, 93835, 108535, 118825, 169669, 185755, 214855, 260057, 300797, 469175, 542675, 848345, 928775, 1074275, 1187683, 1300285, 1503985, 1820399, 2105579, 4241725, 5938415, 6501425, 7519925, 8313781, 9101995, 10527895, 16457893, 29692075, 41568905, 45509975, 52639475, 82289465, 115205251, 207844525, 411447325, 576026255, 806436757, 2880131275, 4032183785, 20160918925]

約数ペア:

[(1, 20160918925), (5, 4032183785), (7, 2880131275), (25, 806436757), (35, 576026255), (49, 411447325), (97, 207844525), (175, 115205251), (245, 82289465), (383, 52639475), (443, 45509975), (485, 41568905), (679, 29692075), (1225, 16457893), (1915, 10527895), (2215, 9101995), (2425, 8313781), (2681, 7519925), (3101, 6501425), (3395, 5938415), (4753, 4241725), (9575, 2105579), (11075, 1820399), (13405, 1503985), (15505, 1300285), (16975, 1187683), (18767, 1074275), (21707, 928775), (23765, 848345), (37151, 542675), (42971, 469175), (67025, 300797), (77525, 260057), (93835, 214855), (108535, 185755), (118825, 169669)]