20918760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3709}}^1$

素因数の和:3770

約数の個数: 64

約数和(自身を含む): 64108800

約数和(自身を除く): 43190040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 3709, 5640, 7418, 11127, 14836, 18545, 22254, 29672, 37090, 44508, 55635, 74180, 89016, 111270, 148360, 174323, 222540, 348646, 445080, 522969, 697292, 871615, 1045938, 1394584, 1743230, 2091876, 2614845, 3486460, 4183752, 5229690, 6972920, 10459380, 20918760]

約数ペア:

[(1, 20918760), (2, 10459380), (3, 6972920), (4, 5229690), (5, 4183752), (6, 3486460), (8, 2614845), (10, 2091876), (12, 1743230), (15, 1394584), (20, 1045938), (24, 871615), (30, 697292), (40, 522969), (47, 445080), (60, 348646), (94, 222540), (120, 174323), (141, 148360), (188, 111270), (235, 89016), (282, 74180), (376, 55635), (470, 44508), (564, 37090), (705, 29672), (940, 22254), (1128, 18545), (1410, 14836), (1880, 11127), (2820, 7418), (3709, 5640)]