19578244

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 42977088

約数和(自身を除く): 23398844

約数列:

[1, 2, 4, 7, 14, 23, 28, 43, 46, 49, 86, 92, 98, 101, 161, 172, 196, 202, 301, 322, 404, 602, 644, 707, 989, 1127, 1204, 1414, 1978, 2107, 2254, 2323, 2828, 3956, 4214, 4343, 4508, 4646, 4949, 6923, 8428, 8686, 9292, 9898, 13846, 16261, 17372, 19796, 27692, 30401, 32522, 48461, 60802, 65044, 96922, 99889, 113827, 121604, 193844, 199778, 212807, 227654, 399556, 425614, 455308, 699223, 851228, 1398446, 2796892, 4894561, 9789122, 19578244]

約数ペア:

[(1, 19578244), (2, 9789122), (4, 4894561), (7, 2796892), (14, 1398446), (23, 851228), (28, 699223), (43, 455308), (46, 425614), (49, 399556), (86, 227654), (92, 212807), (98, 199778), (101, 193844), (161, 121604), (172, 113827), (196, 99889), (202, 96922), (301, 65044), (322, 60802), (404, 48461), (602, 32522), (644, 30401), (707, 27692), (989, 19796), (1127, 17372), (1204, 16261), (1414, 13846), (1978, 9898), (2107, 9292), (2254, 8686), (2323, 8428), (2828, 6923), (3956, 4949), (4214, 4646), (4343, 4508)]