19366900040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1\times {\mathrm{21787}}^1$

素因数の和:22182

約数の個数: 64

約数和(自身を含む): 44332479360

約数和(自身を除く): 24965579320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 313, 355, 568, 626, 710, 1252, 1420, 1565, 2504, 2840, 3130, 6260, 12520, 21787, 22223, 43574, 44446, 87148, 88892, 108935, 111115, 174296, 177784, 217870, 222230, 435740, 444460, 871480, 888920, 1546877, 3093754, 6187508, 6819331, 7734385, 12375016, 13638662, 15468770, 27277324, 30937540, 34096655, 54554648, 61875080, 68193310, 136386620, 272773240, 484172501, 968345002, 1936690004, 2420862505, 3873380008, 4841725010, 9683450020, 19366900040]

約数ペア:

[(1, 19366900040), (2, 9683450020), (4, 4841725010), (5, 3873380008), (8, 2420862505), (10, 1936690004), (20, 968345002), (40, 484172501), (71, 272773240), (142, 136386620), (284, 68193310), (313, 61875080), (355, 54554648), (568, 34096655), (626, 30937540), (710, 27277324), (1252, 15468770), (1420, 13638662), (1565, 12375016), (2504, 7734385), (2840, 6819331), (3130, 6187508), (6260, 3093754), (12520, 1546877), (21787, 888920), (22223, 871480), (43574, 444460), (44446, 435740), (87148, 222230), (88892, 217870), (108935, 177784), (111115, 174296)]