131022780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1987}}^1$

素因数の和:2163

約数の個数: 96

約数和(自身を含む): 422155776

約数和(自身を除く): 291132996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 157, 210, 314, 420, 471, 628, 785, 942, 1099, 1570, 1884, 1987, 2198, 2355, 3140, 3297, 3974, 4396, 4710, 5495, 5961, 6594, 7948, 9420, 9935, 10990, 11922, 13188, 13909, 16485, 19870, 21980, 23844, 27818, 29805, 32970, 39740, 41727, 55636, 59610, 65940, 69545, 83454, 119220, 139090, 166908, 208635, 278180, 311959, 417270, 623918, 834540, 935877, 1247836, 1559795, 1871754, 2183713, 3119590, 3743508, 4367426, 4679385, 6239180, 6551139, 8734852, 9358770, 10918565, 13102278, 18717540, 21837130, 26204556, 32755695, 43674260, 65511390, 131022780]

約数ペア:

[(1, 131022780), (2, 65511390), (3, 43674260), (4, 32755695), (5, 26204556), (6, 21837130), (7, 18717540), (10, 13102278), (12, 10918565), (14, 9358770), (15, 8734852), (20, 6551139), (21, 6239180), (28, 4679385), (30, 4367426), (35, 3743508), (42, 3119590), (60, 2183713), (70, 1871754), (84, 1559795), (105, 1247836), (140, 935877), (157, 834540), (210, 623918), (314, 417270), (420, 311959), (471, 278180), (628, 208635), (785, 166908), (942, 139090), (1099, 119220), (1570, 83454), (1884, 69545), (1987, 65940), (2198, 59610), (2355, 55636), (3140, 41727), (3297, 39740), (3974, 32970), (4396, 29805), (4710, 27818), (5495, 23844), (5961, 21980), (6594, 19870), (7948, 16485), (9420, 13909), (9935, 13188), (10990, 11922)]