661380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 1889664

約数和(自身を除く): 1228284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 151, 219, 292, 302, 365, 438, 453, 604, 730, 755, 876, 906, 1095, 1460, 1510, 1812, 2190, 2265, 3020, 4380, 4530, 9060, 11023, 22046, 33069, 44092, 55115, 66138, 110230, 132276, 165345, 220460, 330690, 661380]

約数ペア:

[(1, 661380), (2, 330690), (3, 220460), (4, 165345), (5, 132276), (6, 110230), (10, 66138), (12, 55115), (15, 44092), (20, 33069), (30, 22046), (60, 11023), (73, 9060), (146, 4530), (151, 4380), (219, 3020), (292, 2265), (302, 2190), (365, 1812), (438, 1510), (453, 1460), (604, 1095), (730, 906), (755, 876)]