20401918208

素因数分解:

$2^8\times 7^1\times {\mathrm{1699}}^1\times {\mathrm{6701}}^1$

素因数の和:8423

約数の個数: 72

約数和(自身を含む): 46576219200

約数和(自身を除く): 26174300992

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1699, 1792, 3398, 6701, 6796, 11893, 13402, 13592, 23786, 26804, 27184, 46907, 47572, 53608, 54368, 93814, 95144, 107216, 108736, 187628, 190288, 214432, 217472, 375256, 380576, 428864, 434944, 750512, 761152, 857728, 1501024, 1522304, 1715456, 3002048, 3044608, 6004096, 11384999, 12008192, 22769998, 45539996, 79694993, 91079992, 159389986, 182159984, 318779972, 364319968, 637559944, 728639936, 1275119888, 1457279872, 2550239776, 2914559744, 5100479552, 10200959104, 20401918208]

約数ペア:

[(1, 20401918208), (2, 10200959104), (4, 5100479552), (7, 2914559744), (8, 2550239776), (14, 1457279872), (16, 1275119888), (28, 728639936), (32, 637559944), (56, 364319968), (64, 318779972), (112, 182159984), (128, 159389986), (224, 91079992), (256, 79694993), (448, 45539996), (896, 22769998), (1699, 12008192), (1792, 11384999), (3398, 6004096), (6701, 3044608), (6796, 3002048), (11893, 1715456), (13402, 1522304), (13592, 1501024), (23786, 857728), (26804, 761152), (27184, 750512), (46907, 434944), (47572, 428864), (53608, 380576), (54368, 375256), (93814, 217472), (95144, 214432), (107216, 190288), (108736, 187628)]