18551340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4481}}^1$

素因数の和:4519

約数の個数: 72

約数和(自身を含む): 58732128

約数和(自身を除く): 40180788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 4481, 8962, 13443, 17924, 22405, 26886, 40329, 44810, 53772, 67215, 80658, 89620, 103063, 134430, 161316, 201645, 206126, 268860, 309189, 403290, 412252, 515315, 618378, 806580, 927567, 1030630, 1236756, 1545945, 1855134, 2061260, 3091890, 3710268, 4637835, 6183780, 9275670, 18551340]

約数ペア:

[(1, 18551340), (2, 9275670), (3, 6183780), (4, 4637835), (5, 3710268), (6, 3091890), (9, 2061260), (10, 1855134), (12, 1545945), (15, 1236756), (18, 1030630), (20, 927567), (23, 806580), (30, 618378), (36, 515315), (45, 412252), (46, 403290), (60, 309189), (69, 268860), (90, 206126), (92, 201645), (115, 161316), (138, 134430), (180, 103063), (207, 89620), (230, 80658), (276, 67215), (345, 53772), (414, 44810), (460, 40329), (690, 26886), (828, 22405), (1035, 17924), (1380, 13443), (2070, 8962), (4140, 4481)]