13421720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{487}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 33203520

約数和(自身を除く): 19781800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 487, 520, 530, 689, 974, 1060, 1378, 1948, 2120, 2435, 2756, 3445, 3896, 4870, 5512, 6331, 6890, 9740, 12662, 13780, 19480, 25324, 25811, 27560, 31655, 50648, 51622, 63310, 103244, 126620, 129055, 206488, 253240, 258110, 335543, 516220, 671086, 1032440, 1342172, 1677715, 2684344, 3355430, 6710860, 13421720]

約数ペア:

[(1, 13421720), (2, 6710860), (4, 3355430), (5, 2684344), (8, 1677715), (10, 1342172), (13, 1032440), (20, 671086), (26, 516220), (40, 335543), (52, 258110), (53, 253240), (65, 206488), (104, 129055), (106, 126620), (130, 103244), (212, 63310), (260, 51622), (265, 50648), (424, 31655), (487, 27560), (520, 25811), (530, 25324), (689, 19480), (974, 13780), (1060, 12662), (1378, 9740), (1948, 6890), (2120, 6331), (2435, 5512), (2756, 4870), (3445, 3896)]