639480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^2$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 1945080

約数和(自身を除く): 1305600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 438, 584, 730, 876, 1095, 1460, 1752, 2190, 2920, 4380, 5329, 8760, 10658, 15987, 21316, 26645, 31974, 42632, 53290, 63948, 79935, 106580, 127896, 159870, 213160, 319740, 639480]

約数ペア:

[(1, 639480), (2, 319740), (3, 213160), (4, 159870), (5, 127896), (6, 106580), (8, 79935), (10, 63948), (12, 53290), (15, 42632), (20, 31974), (24, 26645), (30, 21316), (40, 15987), (60, 10658), (73, 8760), (120, 5329), (146, 4380), (219, 2920), (292, 2190), (365, 1752), (438, 1460), (584, 1095), (730, 876)]