20019930

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13619}}^1$

素因数の和:13643

約数の個数: 48

約数和(自身を含む): 55896480

約数和(自身を除く): 35876550

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13619, 27238, 40857, 68095, 81714, 95333, 136190, 190666, 204285, 285999, 408570, 476665, 571998, 667331, 953330, 1334662, 1429995, 2001993, 2859990, 3336655, 4003986, 6673310, 10009965, 20019930]

約数ペア:

[(1, 20019930), (2, 10009965), (3, 6673310), (5, 4003986), (6, 3336655), (7, 2859990), (10, 2001993), (14, 1429995), (15, 1334662), (21, 953330), (30, 667331), (35, 571998), (42, 476665), (49, 408570), (70, 285999), (98, 204285), (105, 190666), (147, 136190), (210, 95333), (245, 81714), (294, 68095), (490, 40857), (735, 27238), (1470, 13619)]