20455848

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:268

約数の個数: 128

約数和(自身を含む): 66124800

約数和(自身を除く): 45668952

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 83, 84, 108, 126, 163, 166, 168, 189, 216, 249, 252, 326, 332, 378, 489, 498, 504, 581, 652, 664, 747, 756, 978, 996, 1141, 1162, 1304, 1467, 1494, 1512, 1743, 1956, 1992, 2241, 2282, 2324, 2934, 2988, 3423, 3486, 3912, 4401, 4482, 4564, 4648, 5229, 5868, 5976, 6846, 6972, 8802, 8964, 9128, 10269, 10458, 11736, 13529, 13692, 13944, 15687, 17604, 17928, 20538, 20916, 27058, 27384, 30807, 31374, 35208, 40587, 41076, 41832, 54116, 61614, 62748, 81174, 82152, 94703, 108232, 121761, 123228, 125496, 162348, 189406, 243522, 246456, 284109, 324696, 365283, 378812, 487044, 568218, 730566, 757624, 852327, 974088, 1136436, 1461132, 1704654, 2272872, 2556981, 2922264, 3409308, 5113962, 6818616, 10227924, 20455848]

約数ペア:

[(1, 20455848), (2, 10227924), (3, 6818616), (4, 5113962), (6, 3409308), (7, 2922264), (8, 2556981), (9, 2272872), (12, 1704654), (14, 1461132), (18, 1136436), (21, 974088), (24, 852327), (27, 757624), (28, 730566), (36, 568218), (42, 487044), (54, 378812), (56, 365283), (63, 324696), (72, 284109), (83, 246456), (84, 243522), (108, 189406), (126, 162348), (163, 125496), (166, 123228), (168, 121761), (189, 108232), (216, 94703), (249, 82152), (252, 81174), (326, 62748), (332, 61614), (378, 54116), (489, 41832), (498, 41076), (504, 40587), (581, 35208), (652, 31374), (664, 30807), (747, 27384), (756, 27058), (978, 20916), (996, 20538), (1141, 17928), (1162, 17604), (1304, 15687), (1467, 13944), (1494, 13692), (1512, 13529), (1743, 11736), (1956, 10458), (1992, 10269), (2241, 9128), (2282, 8964), (2324, 8802), (2934, 6972), (2988, 6846), (3423, 5976), (3486, 5868), (3912, 5229), (4401, 4648), (4482, 4564)]