20178419968

素因数分解:

$2^8\times 7^1\times {\mathrm{1213}}^1\times {\mathrm{9283}}^1$

素因数の和:10519

約数の個数: 72

約数和(自身を含む): 46074932288

約数和(自身を除く): 25896512320

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1213, 1792, 2426, 4852, 8491, 9283, 9704, 16982, 18566, 19408, 33964, 37132, 38816, 64981, 67928, 74264, 77632, 129962, 135856, 148528, 155264, 259924, 271712, 297056, 310528, 519848, 543424, 594112, 1039696, 1086848, 1188224, 2079392, 2173696, 2376448, 4158784, 8317568, 11260279, 16635136, 22520558, 45041116, 78821953, 90082232, 157643906, 180164464, 315287812, 360328928, 630575624, 720657856, 1261151248, 1441315712, 2522302496, 2882631424, 5044604992, 10089209984, 20178419968]

約数ペア:

[(1, 20178419968), (2, 10089209984), (4, 5044604992), (7, 2882631424), (8, 2522302496), (14, 1441315712), (16, 1261151248), (28, 720657856), (32, 630575624), (56, 360328928), (64, 315287812), (112, 180164464), (128, 157643906), (224, 90082232), (256, 78821953), (448, 45041116), (896, 22520558), (1213, 16635136), (1792, 11260279), (2426, 8317568), (4852, 4158784), (8491, 2376448), (9283, 2173696), (9704, 2079392), (16982, 1188224), (18566, 1086848), (19408, 1039696), (33964, 594112), (37132, 543424), (38816, 519848), (64981, 310528), (67928, 297056), (74264, 271712), (77632, 259924), (129962, 155264), (135856, 148528)]