20243960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 50198400

約数和(自身を除く): 29954440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 139, 220, 278, 331, 440, 556, 662, 695, 1112, 1324, 1390, 1529, 1655, 2648, 2780, 3058, 3310, 3641, 5560, 6116, 6620, 7282, 7645, 12232, 13240, 14564, 15290, 18205, 29128, 30580, 36410, 46009, 61160, 72820, 92018, 145640, 184036, 230045, 368072, 460090, 506099, 920180, 1012198, 1840360, 2024396, 2530495, 4048792, 5060990, 10121980, 20243960]

約数ペア:

[(1, 20243960), (2, 10121980), (4, 5060990), (5, 4048792), (8, 2530495), (10, 2024396), (11, 1840360), (20, 1012198), (22, 920180), (40, 506099), (44, 460090), (55, 368072), (88, 230045), (110, 184036), (139, 145640), (220, 92018), (278, 72820), (331, 61160), (440, 46009), (556, 36410), (662, 30580), (695, 29128), (1112, 18205), (1324, 15290), (1390, 14564), (1529, 13240), (1655, 12232), (2648, 7645), (2780, 7282), (3058, 6620), (3310, 6116), (3641, 5560)]