76787420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{241}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 164656800

約数和(自身を除く): 87869380

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 179, 241, 356, 358, 445, 482, 716, 890, 895, 964, 1205, 1780, 1790, 2410, 3580, 4820, 15931, 21449, 31862, 42898, 43139, 63724, 79655, 85796, 86278, 107245, 159310, 172556, 214490, 215695, 318620, 428980, 431390, 862780, 3839371, 7678742, 15357484, 19196855, 38393710, 76787420]

約数ペア:

[(1, 76787420), (2, 38393710), (4, 19196855), (5, 15357484), (10, 7678742), (20, 3839371), (89, 862780), (178, 431390), (179, 428980), (241, 318620), (356, 215695), (358, 214490), (445, 172556), (482, 159310), (716, 107245), (890, 86278), (895, 85796), (964, 79655), (1205, 63724), (1780, 43139), (1790, 42898), (2410, 31862), (3580, 21449), (4820, 15931)]