646600

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 1556820

約数和(自身を除く): 910220

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 61, 100, 106, 122, 200, 212, 244, 265, 305, 424, 488, 530, 610, 1060, 1220, 1325, 1525, 2120, 2440, 2650, 3050, 3233, 5300, 6100, 6466, 10600, 12200, 12932, 16165, 25864, 32330, 64660, 80825, 129320, 161650, 323300, 646600]

約数ペア:

[(1, 646600), (2, 323300), (4, 161650), (5, 129320), (8, 80825), (10, 64660), (20, 32330), (25, 25864), (40, 16165), (50, 12932), (53, 12200), (61, 10600), (100, 6466), (106, 6100), (122, 5300), (200, 3233), (212, 3050), (244, 2650), (265, 2440), (305, 2120), (424, 1525), (488, 1325), (530, 1220), (610, 1060)]