21447400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 54918360

約数和(自身を除く): 33470960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 73, 100, 104, 113, 130, 146, 200, 226, 260, 292, 325, 365, 452, 520, 565, 584, 650, 730, 904, 949, 1130, 1300, 1460, 1469, 1825, 1898, 2260, 2600, 2825, 2920, 2938, 3650, 3796, 4520, 4745, 5650, 5876, 7300, 7345, 7592, 8249, 9490, 11300, 11752, 14600, 14690, 16498, 18980, 22600, 23725, 29380, 32996, 36725, 37960, 41245, 47450, 58760, 65992, 73450, 82490, 94900, 107237, 146900, 164980, 189800, 206225, 214474, 293800, 329960, 412450, 428948, 536185, 824900, 857896, 1072370, 1649800, 2144740, 2680925, 4289480, 5361850, 10723700, 21447400]

約数ペア:

[(1, 21447400), (2, 10723700), (4, 5361850), (5, 4289480), (8, 2680925), (10, 2144740), (13, 1649800), (20, 1072370), (25, 857896), (26, 824900), (40, 536185), (50, 428948), (52, 412450), (65, 329960), (73, 293800), (100, 214474), (104, 206225), (113, 189800), (130, 164980), (146, 146900), (200, 107237), (226, 94900), (260, 82490), (292, 73450), (325, 65992), (365, 58760), (452, 47450), (520, 41245), (565, 37960), (584, 36725), (650, 32996), (730, 29380), (904, 23725), (949, 22600), (1130, 18980), (1300, 16498), (1460, 14690), (1469, 14600), (1825, 11752), (1898, 11300), (2260, 9490), (2600, 8249), (2825, 7592), (2920, 7345), (2938, 7300), (3650, 5876), (3796, 5650), (4520, 4745)]