7844280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{499}}^1$

素因数の和:644

約数の個数: 64

約数和(自身を含む): 23760000

約数和(自身を除く): 15915720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 499, 524, 655, 786, 998, 1048, 1310, 1497, 1572, 1965, 1996, 2495, 2620, 2994, 3144, 3930, 3992, 4990, 5240, 5988, 7485, 7860, 9980, 11976, 14970, 15720, 19960, 29940, 59880, 65369, 130738, 196107, 261476, 326845, 392214, 522952, 653690, 784428, 980535, 1307380, 1568856, 1961070, 2614760, 3922140, 7844280]

約数ペア:

[(1, 7844280), (2, 3922140), (3, 2614760), (4, 1961070), (5, 1568856), (6, 1307380), (8, 980535), (10, 784428), (12, 653690), (15, 522952), (20, 392214), (24, 326845), (30, 261476), (40, 196107), (60, 130738), (120, 65369), (131, 59880), (262, 29940), (393, 19960), (499, 15720), (524, 14970), (655, 11976), (786, 9980), (998, 7860), (1048, 7485), (1310, 5988), (1497, 5240), (1572, 4990), (1965, 3992), (1996, 3930), (2495, 3144), (2620, 2994)]