490853240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{721843}}^1$

素因数の和:721871

約数の個数: 32

約数和(自身を含む): 1169387280

約数和(自身を除く): 678534040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 721843, 1443686, 2887372, 3609215, 5774744, 7218430, 12271331, 14436860, 24542662, 28873720, 49085324, 61356655, 98170648, 122713310, 245426620, 490853240]

約数ペア:

[(1, 490853240), (2, 245426620), (4, 122713310), (5, 98170648), (8, 61356655), (10, 49085324), (17, 28873720), (20, 24542662), (34, 14436860), (40, 12271331), (68, 7218430), (85, 5774744), (136, 3609215), (170, 2887372), (340, 1443686), (680, 721843)]