2709980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1489}}^1$

素因数の和:1518

約数の個数: 48

約数和(自身を含む): 7008960

約数和(自身を除く): 4298980

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1489, 1820, 2978, 5956, 7445, 10423, 14890, 19357, 20846, 29780, 38714, 41692, 52115, 77428, 96785, 104230, 135499, 193570, 208460, 270998, 387140, 541996, 677495, 1354990, 2709980]

約数ペア:

[(1, 2709980), (2, 1354990), (4, 677495), (5, 541996), (7, 387140), (10, 270998), (13, 208460), (14, 193570), (20, 135499), (26, 104230), (28, 96785), (35, 77428), (52, 52115), (65, 41692), (70, 38714), (91, 29780), (130, 20846), (140, 19357), (182, 14890), (260, 10423), (364, 7445), (455, 5956), (910, 2978), (1489, 1820)]