81103020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71143}}^1$

素因数の和:71174

約数の個数: 48

約数和(自身を含む): 239043840

約数和(自身を除く): 157940820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 71143, 142286, 213429, 284572, 355715, 426858, 711430, 853716, 1067145, 1351717, 1422860, 2134290, 2703434, 4055151, 4268580, 5406868, 6758585, 8110302, 13517170, 16220604, 20275755, 27034340, 40551510, 81103020]

約数ペア:

[(1, 81103020), (2, 40551510), (3, 27034340), (4, 20275755), (5, 16220604), (6, 13517170), (10, 8110302), (12, 6758585), (15, 5406868), (19, 4268580), (20, 4055151), (30, 2703434), (38, 2134290), (57, 1422860), (60, 1351717), (76, 1067145), (95, 853716), (114, 711430), (190, 426858), (228, 355715), (285, 284572), (380, 213429), (570, 142286), (1140, 71143)]