20144660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 45178560

約数和(自身を除く): 25033900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 179, 331, 340, 358, 662, 716, 895, 1324, 1655, 1790, 3043, 3310, 3580, 5627, 6086, 6620, 11254, 12172, 15215, 22508, 28135, 30430, 56270, 59249, 60860, 112540, 118498, 236996, 296245, 592490, 1007233, 1184980, 2014466, 4028932, 5036165, 10072330, 20144660]

約数ペア:

[(1, 20144660), (2, 10072330), (4, 5036165), (5, 4028932), (10, 2014466), (17, 1184980), (20, 1007233), (34, 592490), (68, 296245), (85, 236996), (170, 118498), (179, 112540), (331, 60860), (340, 59249), (358, 56270), (662, 30430), (716, 28135), (895, 22508), (1324, 15215), (1655, 12172), (1790, 11254), (3043, 6620), (3310, 6086), (3580, 5627)]