19678380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2089}}^1$

素因数の和:2258

約数の個数: 48

約数和(自身を含む): 55476960

約数和(自身を除く): 35798580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1884, 2089, 2355, 3140, 4178, 4710, 6267, 8356, 9420, 10445, 12534, 20890, 25068, 31335, 41780, 62670, 125340, 327973, 655946, 983919, 1311892, 1639865, 1967838, 3279730, 3935676, 4919595, 6559460, 9839190, 19678380]

約数ペア:

[(1, 19678380), (2, 9839190), (3, 6559460), (4, 4919595), (5, 3935676), (6, 3279730), (10, 1967838), (12, 1639865), (15, 1311892), (20, 983919), (30, 655946), (60, 327973), (157, 125340), (314, 62670), (471, 41780), (628, 31335), (785, 25068), (942, 20890), (1570, 12534), (1884, 10445), (2089, 9420), (2355, 8356), (3140, 6267), (4178, 4710)]