255938740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{39619}}^1$

素因数の和:39664

約数の個数: 48

約数和(自身を含む): 599054400

約数和(自身を除く): 343115660

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, 39619, 79238, 158476, 198095, 396190, 673523, 752761, 792380, 1347046, 1505522, 2694092, 3011044, 3367615, 3763805, 6735230, 7527610, 12796937, 13470460, 15055220, 25593874, 51187748, 63984685, 127969370, 255938740]

約数ペア:

[(1, 255938740), (2, 127969370), (4, 63984685), (5, 51187748), (10, 25593874), (17, 15055220), (19, 13470460), (20, 12796937), (34, 7527610), (38, 6735230), (68, 3763805), (76, 3367615), (85, 3011044), (95, 2694092), (170, 1505522), (190, 1347046), (323, 792380), (340, 752761), (380, 673523), (646, 396190), (1292, 198095), (1615, 158476), (3230, 79238), (6460, 39619)]