278380780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43093}}^1$

素因数の和:43138

約数の個数: 48

約数和(自身を含む): 651581280

約数和(自身を除く): 373200500

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 43093, 86186, 172372, 215465, 430930, 732581, 818767, 861860, 1465162, 1637534, 2930324, 3275068, 3662905, 4093835, 7325810, 8187670, 13919039, 14651620, 16375340, 27838078, 55676156, 69595195, 139190390, 278380780]

約数ペア:

[(1, 278380780), (2, 139190390), (4, 69595195), (5, 55676156), (10, 27838078), (17, 16375340), (19, 14651620), (20, 13919039), (34, 8187670), (38, 7325810), (68, 4093835), (76, 3662905), (85, 3275068), (95, 2930324), (170, 1637534), (190, 1465162), (323, 861860), (340, 818767), (380, 732581), (646, 430930), (1292, 215465), (1615, 172372), (3230, 86186), (6460, 43093)]