66830980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{443}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 148438080

約数和(自身を除く): 81607100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 397, 443, 794, 886, 1588, 1772, 1985, 2215, 3970, 4430, 7543, 7940, 8417, 8860, 15086, 16834, 30172, 33668, 37715, 42085, 75430, 84170, 150860, 168340, 175871, 351742, 703484, 879355, 1758710, 3341549, 3517420, 6683098, 13366196, 16707745, 33415490, 66830980]

約数ペア:

[(1, 66830980), (2, 33415490), (4, 16707745), (5, 13366196), (10, 6683098), (19, 3517420), (20, 3341549), (38, 1758710), (76, 879355), (95, 703484), (190, 351742), (380, 175871), (397, 168340), (443, 150860), (794, 84170), (886, 75430), (1588, 42085), (1772, 37715), (1985, 33668), (2215, 30172), (3970, 16834), (4430, 15086), (7543, 8860), (7940, 8417)]