81797185520

素因数分解:

$2^4\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1651801}}^1$

素因数の和:1652433

約数の個数: 40

約数和(自身を含む): 190485806640

約数和(自身を除く): 108688621120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 619, 1238, 2476, 3095, 4952, 6190, 9904, 12380, 24760, 49520, 1651801, 3303602, 6607204, 8259005, 13214408, 16518010, 26428816, 33036020, 66072040, 132144080, 1022464819, 2044929638, 4089859276, 5112324095, 8179718552, 10224648190, 16359437104, 20449296380, 40898592760, 81797185520]

約数ペア:

[(1, 81797185520), (2, 40898592760), (4, 20449296380), (5, 16359437104), (8, 10224648190), (10, 8179718552), (16, 5112324095), (20, 4089859276), (40, 2044929638), (80, 1022464819), (619, 132144080), (1238, 66072040), (2476, 33036020), (3095, 26428816), (4952, 16518010), (6190, 13214408), (9904, 8259005), (12380, 6607204), (24760, 3303602), (49520, 1651801)]