123420840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6551}}^1$

素因数の和:6722

約数の個数: 64

約数和(自身を含む): 372677760

約数和(自身を除く): 249256920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 1256, 1570, 1884, 2355, 3140, 3768, 4710, 6280, 6551, 9420, 13102, 18840, 19653, 26204, 32755, 39306, 52408, 65510, 78612, 98265, 131020, 157224, 196530, 262040, 393060, 786120, 1028507, 2057014, 3085521, 4114028, 5142535, 6171042, 8228056, 10285070, 12342084, 15427605, 20570140, 24684168, 30855210, 41140280, 61710420, 123420840]

約数ペア:

[(1, 123420840), (2, 61710420), (3, 41140280), (4, 30855210), (5, 24684168), (6, 20570140), (8, 15427605), (10, 12342084), (12, 10285070), (15, 8228056), (20, 6171042), (24, 5142535), (30, 4114028), (40, 3085521), (60, 2057014), (120, 1028507), (157, 786120), (314, 393060), (471, 262040), (628, 196530), (785, 157224), (942, 131020), (1256, 98265), (1570, 78612), (1884, 65510), (2355, 52408), (3140, 39306), (3768, 32755), (4710, 26204), (6280, 19653), (6551, 18840), (9420, 13102)]