81518740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{12619}}^1$

素因数の和:12664

約数の個数: 48

約数和(自身を含む): 190814400

約数和(自身を除く): 109295660

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, 12619, 25238, 50476, 63095, 126190, 214523, 239761, 252380, 429046, 479522, 858092, 959044, 1072615, 1198805, 2145230, 2397610, 4075937, 4290460, 4795220, 8151874, 16303748, 20379685, 40759370, 81518740]

約数ペア:

[(1, 81518740), (2, 40759370), (4, 20379685), (5, 16303748), (10, 8151874), (17, 4795220), (19, 4290460), (20, 4075937), (34, 2397610), (38, 2145230), (68, 1198805), (76, 1072615), (85, 959044), (95, 858092), (170, 479522), (190, 429046), (323, 252380), (340, 239761), (380, 214523), (646, 126190), (1292, 63095), (1615, 50476), (3230, 25238), (6460, 12619)]