81275880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{96757}}^1$

素因数の和:96778

約数の個数: 64

約数和(自身を含む): 278663040

約数和(自身を除く): 197387160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 96757, 193514, 290271, 387028, 483785, 580542, 677299, 774056, 967570, 1161084, 1354598, 1451355, 1935140, 2031897, 2322168, 2709196, 2902710, 3386495, 3870280, 4063794, 5418392, 5805420, 6772990, 8127588, 10159485, 11610840, 13545980, 16255176, 20318970, 27091960, 40637940, 81275880]

約数ペア:

[(1, 81275880), (2, 40637940), (3, 27091960), (4, 20318970), (5, 16255176), (6, 13545980), (7, 11610840), (8, 10159485), (10, 8127588), (12, 6772990), (14, 5805420), (15, 5418392), (20, 4063794), (21, 3870280), (24, 3386495), (28, 2902710), (30, 2709196), (35, 2322168), (40, 2031897), (42, 1935140), (56, 1451355), (60, 1354598), (70, 1161084), (84, 967570), (105, 774056), (120, 677299), (140, 580542), (168, 483785), (210, 387028), (280, 290271), (420, 193514), (840, 96757)]