27985160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1123}}^1$

素因数の和:1230

約数の個数: 64

約数和(自身を含む): 72835200

約数和(自身を除く): 44850040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1123, 1246, 1780, 2246, 2492, 3115, 3560, 4492, 4984, 5615, 6230, 7861, 8984, 11230, 12460, 15722, 22460, 24920, 31444, 39305, 44920, 62888, 78610, 99947, 157220, 199894, 314440, 399788, 499735, 699629, 799576, 999470, 1399258, 1998940, 2798516, 3498145, 3997880, 5597032, 6996290, 13992580, 27985160]

約数ペア:

[(1, 27985160), (2, 13992580), (4, 6996290), (5, 5597032), (7, 3997880), (8, 3498145), (10, 2798516), (14, 1998940), (20, 1399258), (28, 999470), (35, 799576), (40, 699629), (56, 499735), (70, 399788), (89, 314440), (140, 199894), (178, 157220), (280, 99947), (356, 78610), (445, 62888), (623, 44920), (712, 39305), (890, 31444), (1123, 24920), (1246, 22460), (1780, 15722), (2246, 12460), (2492, 11230), (3115, 8984), (3560, 7861), (4492, 6230), (4984, 5615)]