15128680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{761}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 39502080

約数和(自身を除く): 24373400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 761, 994, 1420, 1522, 1988, 2485, 2840, 3044, 3805, 3976, 4970, 5327, 6088, 7610, 9940, 10654, 15220, 19880, 21308, 26635, 30440, 42616, 53270, 54031, 106540, 108062, 213080, 216124, 270155, 378217, 432248, 540310, 756434, 1080620, 1512868, 1891085, 2161240, 3025736, 3782170, 7564340, 15128680]

約数ペア:

[(1, 15128680), (2, 7564340), (4, 3782170), (5, 3025736), (7, 2161240), (8, 1891085), (10, 1512868), (14, 1080620), (20, 756434), (28, 540310), (35, 432248), (40, 378217), (56, 270155), (70, 216124), (71, 213080), (140, 108062), (142, 106540), (280, 54031), (284, 53270), (355, 42616), (497, 30440), (568, 26635), (710, 21308), (761, 19880), (994, 15220), (1420, 10654), (1522, 9940), (1988, 7610), (2485, 6088), (2840, 5327), (3044, 4970), (3805, 3976)]