87740870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{241}}^1\times {\mathrm{743}}^1$

素因数の和:1005

約数の個数: 48

約数和(自身を含む): 184729248

約数和(自身を除く): 96988378

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 241, 245, 482, 490, 743, 1205, 1486, 1687, 2410, 3374, 3715, 5201, 7430, 8435, 10402, 11809, 16870, 23618, 26005, 36407, 52010, 59045, 72814, 118090, 179063, 182035, 358126, 364070, 895315, 1253441, 1790630, 2506882, 6267205, 8774087, 12534410, 17548174, 43870435, 87740870]

約数ペア:

[(1, 87740870), (2, 43870435), (5, 17548174), (7, 12534410), (10, 8774087), (14, 6267205), (35, 2506882), (49, 1790630), (70, 1253441), (98, 895315), (241, 364070), (245, 358126), (482, 182035), (490, 179063), (743, 118090), (1205, 72814), (1486, 59045), (1687, 52010), (2410, 36407), (3374, 26005), (3715, 23618), (5201, 16870), (7430, 11809), (8435, 10402)]