20242820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 47315016

約数和(自身を除く): 27072196

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 113, 130, 169, 212, 226, 260, 265, 338, 452, 530, 565, 676, 689, 845, 1060, 1130, 1378, 1469, 1690, 2260, 2756, 2938, 3380, 3445, 5876, 5989, 6890, 7345, 8957, 11978, 13780, 14690, 17914, 19097, 23956, 29380, 29945, 35828, 38194, 44785, 59890, 76388, 77857, 89570, 95485, 119780, 155714, 179140, 190970, 311428, 381940, 389285, 778570, 1012141, 1557140, 2024282, 4048564, 5060705, 10121410, 20242820]

約数ペア:

[(1, 20242820), (2, 10121410), (4, 5060705), (5, 4048564), (10, 2024282), (13, 1557140), (20, 1012141), (26, 778570), (52, 389285), (53, 381940), (65, 311428), (106, 190970), (113, 179140), (130, 155714), (169, 119780), (212, 95485), (226, 89570), (260, 77857), (265, 76388), (338, 59890), (452, 44785), (530, 38194), (565, 35828), (676, 29945), (689, 29380), (845, 23956), (1060, 19097), (1130, 17914), (1378, 14690), (1469, 13780), (1690, 11978), (2260, 8957), (2756, 7345), (2938, 6890), (3380, 5989), (3445, 5876)]