8519980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3203}}^1$

素因数の和:3238

約数の個数: 48

約数和(自身を含む): 21530880

約数和(自身を除く): 13010900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 3203, 6406, 12812, 16015, 22421, 32030, 44842, 60857, 64060, 89684, 112105, 121714, 224210, 243428, 304285, 425999, 448420, 608570, 851998, 1217140, 1703996, 2129995, 4259990, 8519980]

約数ペア:

[(1, 8519980), (2, 4259990), (4, 2129995), (5, 1703996), (7, 1217140), (10, 851998), (14, 608570), (19, 448420), (20, 425999), (28, 304285), (35, 243428), (38, 224210), (70, 121714), (76, 112105), (95, 89684), (133, 64060), (140, 60857), (190, 44842), (266, 32030), (380, 22421), (532, 16015), (665, 12812), (1330, 6406), (2660, 3203)]