1864804540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{7537}}^1$

素因数の和:7774

約数の個数: 48

約数和(自身を含む): 3989109600

約数和(自身を除く): 2124305060

約数列:

[1, 2, 4, 5, 10, 20, 89, 139, 178, 278, 356, 445, 556, 695, 890, 1390, 1780, 2780, 7537, 12371, 15074, 24742, 30148, 37685, 49484, 61855, 75370, 123710, 150740, 247420, 670793, 1047643, 1341586, 2095286, 2683172, 3353965, 4190572, 5238215, 6707930, 10476430, 13415860, 20952860, 93240227, 186480454, 372960908, 466201135, 932402270, 1864804540]

約数ペア:

[(1, 1864804540), (2, 932402270), (4, 466201135), (5, 372960908), (10, 186480454), (20, 93240227), (89, 20952860), (139, 13415860), (178, 10476430), (278, 6707930), (356, 5238215), (445, 4190572), (556, 3353965), (695, 2683172), (890, 2095286), (1390, 1341586), (1780, 1047643), (2780, 670793), (7537, 247420), (12371, 150740), (15074, 123710), (24742, 75370), (30148, 61855), (37685, 49484)]