278920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 662400

約数和(自身を除く): 383480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 367, 380, 734, 760, 1468, 1835, 2936, 3670, 6973, 7340, 13946, 14680, 27892, 34865, 55784, 69730, 139460, 278920]

約数ペア:

[(1, 278920), (2, 139460), (4, 69730), (5, 55784), (8, 34865), (10, 27892), (19, 14680), (20, 13946), (38, 7340), (40, 6973), (76, 3670), (95, 2936), (152, 1835), (190, 1468), (367, 760), (380, 734)]