20890680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1627}}^1$

素因数の和:1748

約数の個数: 64

約数和(自身を含む): 63296640

約数和(自身を除く): 42405960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1605, 1627, 2140, 2568, 3210, 3254, 4280, 4881, 6420, 6508, 8135, 9762, 12840, 13016, 16270, 19524, 24405, 32540, 39048, 48810, 65080, 97620, 174089, 195240, 348178, 522267, 696356, 870445, 1044534, 1392712, 1740890, 2089068, 2611335, 3481780, 4178136, 5222670, 6963560, 10445340, 20890680]

約数ペア:

[(1, 20890680), (2, 10445340), (3, 6963560), (4, 5222670), (5, 4178136), (6, 3481780), (8, 2611335), (10, 2089068), (12, 1740890), (15, 1392712), (20, 1044534), (24, 870445), (30, 696356), (40, 522267), (60, 348178), (107, 195240), (120, 174089), (214, 97620), (321, 65080), (428, 48810), (535, 39048), (642, 32540), (856, 24405), (1070, 19524), (1284, 16270), (1605, 13016), (1627, 12840), (2140, 9762), (2568, 8135), (3210, 6508), (3254, 6420), (4280, 4881)]