18620380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2579}}^1$

素因数の和:2626

約数の個数: 36

約数和(自身を含む): 41285160

約数和(自身を除く): 22664780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 2579, 3610, 5158, 7220, 10316, 12895, 25790, 49001, 51580, 98002, 196004, 245005, 490010, 931019, 980020, 1862038, 3724076, 4655095, 9310190, 18620380]

約数ペア:

[(1, 18620380), (2, 9310190), (4, 4655095), (5, 3724076), (10, 1862038), (19, 980020), (20, 931019), (38, 490010), (76, 245005), (95, 196004), (190, 98002), (361, 51580), (380, 49001), (722, 25790), (1444, 12895), (1805, 10316), (2579, 7220), (3610, 5158)]