18710820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5471}}^1$

素因数の和:5505

約数の個数: 72

約数和(自身を含む): 59754240

約数和(自身を除く): 41043420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 5471, 10942, 16413, 21884, 27355, 32826, 49239, 54710, 65652, 82065, 98478, 103949, 109420, 164130, 196956, 207898, 246195, 311847, 328260, 415796, 492390, 519745, 623694, 935541, 984780, 1039490, 1247388, 1559235, 1871082, 2078980, 3118470, 3742164, 4677705, 6236940, 9355410, 18710820]

約数ペア:

[(1, 18710820), (2, 9355410), (3, 6236940), (4, 4677705), (5, 3742164), (6, 3118470), (9, 2078980), (10, 1871082), (12, 1559235), (15, 1247388), (18, 1039490), (19, 984780), (20, 935541), (30, 623694), (36, 519745), (38, 492390), (45, 415796), (57, 328260), (60, 311847), (76, 246195), (90, 207898), (95, 196956), (114, 164130), (171, 109420), (180, 103949), (190, 98478), (228, 82065), (285, 65652), (342, 54710), (380, 49239), (570, 32826), (684, 27355), (855, 21884), (1140, 16413), (1710, 10942), (3420, 5471)]