4284140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 10450944

約数和(自身を除く): 6166804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 431, 497, 710, 862, 994, 1420, 1724, 1988, 2155, 2485, 3017, 4310, 4970, 6034, 8620, 9940, 12068, 15085, 30170, 30601, 60340, 61202, 122404, 153005, 214207, 306010, 428414, 612020, 856828, 1071035, 2142070, 4284140]

約数ペア:

[(1, 4284140), (2, 2142070), (4, 1071035), (5, 856828), (7, 612020), (10, 428414), (14, 306010), (20, 214207), (28, 153005), (35, 122404), (70, 61202), (71, 60340), (140, 30601), (142, 30170), (284, 15085), (355, 12068), (431, 9940), (497, 8620), (710, 6034), (862, 4970), (994, 4310), (1420, 3017), (1724, 2485), (1988, 2155)]