20644860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1901}}^1$

素因数の和:2094

約数の個数: 48

約数和(自身を含む): 58155552

約数和(自身を除く): 37510692

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 181, 362, 543, 724, 905, 1086, 1810, 1901, 2172, 2715, 3620, 3802, 5430, 5703, 7604, 9505, 10860, 11406, 19010, 22812, 28515, 38020, 57030, 114060, 344081, 688162, 1032243, 1376324, 1720405, 2064486, 3440810, 4128972, 5161215, 6881620, 10322430, 20644860]

約数ペア:

[(1, 20644860), (2, 10322430), (3, 6881620), (4, 5161215), (5, 4128972), (6, 3440810), (10, 2064486), (12, 1720405), (15, 1376324), (20, 1032243), (30, 688162), (60, 344081), (181, 114060), (362, 57030), (543, 38020), (724, 28515), (905, 22812), (1086, 19010), (1810, 11406), (1901, 10860), (2172, 9505), (2715, 7604), (3620, 5703), (3802, 5430)]