2719660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 6380640

約数和(自身を除く): 3660980

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 421, 646, 842, 1292, 1615, 1684, 2105, 3230, 4210, 6460, 7157, 7999, 8420, 14314, 15998, 28628, 31996, 35785, 39995, 71570, 79990, 135983, 143140, 159980, 271966, 543932, 679915, 1359830, 2719660]

約数ペア:

[(1, 2719660), (2, 1359830), (4, 679915), (5, 543932), (10, 271966), (17, 159980), (19, 143140), (20, 135983), (34, 79990), (38, 71570), (68, 39995), (76, 35785), (85, 31996), (95, 28628), (170, 15998), (190, 14314), (323, 8420), (340, 7999), (380, 7157), (421, 6460), (646, 4210), (842, 3230), (1292, 2105), (1615, 1684)]