131880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 455040

約数和(自身を除く): 323160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 210, 280, 314, 420, 471, 628, 785, 840, 942, 1099, 1256, 1570, 1884, 2198, 2355, 3140, 3297, 3768, 4396, 4710, 5495, 6280, 6594, 8792, 9420, 10990, 13188, 16485, 18840, 21980, 26376, 32970, 43960, 65940, 131880]

約数ペア:

[(1, 131880), (2, 65940), (3, 43960), (4, 32970), (5, 26376), (6, 21980), (7, 18840), (8, 16485), (10, 13188), (12, 10990), (14, 9420), (15, 8792), (20, 6594), (21, 6280), (24, 5495), (28, 4710), (30, 4396), (35, 3768), (40, 3297), (42, 3140), (56, 2355), (60, 2198), (70, 1884), (84, 1570), (105, 1256), (120, 1099), (140, 942), (157, 840), (168, 785), (210, 628), (280, 471), (314, 420)]