20178097625

素因数分解:

$5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{7669}}^1$

素因数の和:7819

約数の個数: 64

約数和(自身を含む): 30018293760

約数和(自身を除く): 9840196135

約数列:

[1, 5, 7, 25, 31, 35, 97, 125, 155, 175, 217, 485, 679, 775, 875, 1085, 2425, 3007, 3395, 3875, 5425, 7669, 12125, 15035, 16975, 21049, 27125, 38345, 53683, 75175, 84875, 105245, 191725, 237739, 268415, 375875, 526225, 743893, 958625, 1188695, 1342075, 1664173, 2631125, 3719465, 5207251, 5943475, 6710375, 8320865, 18597325, 23060683, 26036255, 29717375, 41604325, 92986625, 115303415, 130181275, 161424781, 208021625, 576517075, 650906375, 807123905, 2882585375, 4035619525, 20178097625]

約数ペア:

[(1, 20178097625), (5, 4035619525), (7, 2882585375), (25, 807123905), (31, 650906375), (35, 576517075), (97, 208021625), (125, 161424781), (155, 130181275), (175, 115303415), (217, 92986625), (485, 41604325), (679, 29717375), (775, 26036255), (875, 23060683), (1085, 18597325), (2425, 8320865), (3007, 6710375), (3395, 5943475), (3875, 5207251), (5425, 3719465), (7669, 2631125), (12125, 1664173), (15035, 1342075), (16975, 1188695), (21049, 958625), (27125, 743893), (38345, 526225), (53683, 375875), (75175, 268415), (84875, 237739), (105245, 191725)]