81120900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{38629}}^1$

素因数の和:38653

約数の個数: 72

約数和(自身を含む): 268246720

約数和(自身を除く): 187125820

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 38629, 77258, 115887, 154516, 193145, 231774, 270403, 386290, 463548, 540806, 579435, 772580, 811209, 965725, 1081612, 1158870, 1352015, 1622418, 1931450, 2317740, 2704030, 2897175, 3244836, 3862900, 4056045, 5408060, 5794350, 6760075, 8112090, 11588700, 13520150, 16224180, 20280225, 27040300, 40560450, 81120900]

約数ペア:

[(1, 81120900), (2, 40560450), (3, 27040300), (4, 20280225), (5, 16224180), (6, 13520150), (7, 11588700), (10, 8112090), (12, 6760075), (14, 5794350), (15, 5408060), (20, 4056045), (21, 3862900), (25, 3244836), (28, 2897175), (30, 2704030), (35, 2317740), (42, 1931450), (50, 1622418), (60, 1352015), (70, 1158870), (75, 1081612), (84, 965725), (100, 811209), (105, 772580), (140, 579435), (150, 540806), (175, 463548), (210, 386290), (300, 270403), (350, 231774), (420, 193145), (525, 154516), (700, 115887), (1050, 77258), (2100, 38629)]