20888790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2819}}^1$

素因数の和:2861

約数の個数: 64

約数和(自身を含む): 56851200

約数和(自身を除く): 35962410

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2819, 3705, 5638, 7410, 8457, 14095, 16914, 28190, 36647, 42285, 53561, 73294, 84570, 107122, 109941, 160683, 183235, 219882, 267805, 321366, 366470, 535610, 549705, 696293, 803415, 1099410, 1392586, 1606830, 2088879, 3481465, 4177758, 6962930, 10444395, 20888790]

約数ペア:

[(1, 20888790), (2, 10444395), (3, 6962930), (5, 4177758), (6, 3481465), (10, 2088879), (13, 1606830), (15, 1392586), (19, 1099410), (26, 803415), (30, 696293), (38, 549705), (39, 535610), (57, 366470), (65, 321366), (78, 267805), (95, 219882), (114, 183235), (130, 160683), (190, 109941), (195, 107122), (247, 84570), (285, 73294), (390, 53561), (494, 42285), (570, 36647), (741, 28190), (1235, 16914), (1482, 14095), (2470, 8457), (2819, 7410), (3705, 5638)]