2663420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 6061440

約数和(自身を除く): 3398020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 163, 172, 190, 215, 326, 380, 430, 652, 815, 817, 860, 1630, 1634, 3097, 3260, 3268, 4085, 6194, 7009, 8170, 12388, 14018, 15485, 16340, 28036, 30970, 35045, 61940, 70090, 133171, 140180, 266342, 532684, 665855, 1331710, 2663420]

約数ペア:

[(1, 2663420), (2, 1331710), (4, 665855), (5, 532684), (10, 266342), (19, 140180), (20, 133171), (38, 70090), (43, 61940), (76, 35045), (86, 30970), (95, 28036), (163, 16340), (172, 15485), (190, 14018), (215, 12388), (326, 8170), (380, 7009), (430, 6194), (652, 4085), (815, 3268), (817, 3260), (860, 3097), (1630, 1634)]