128011600

素因数分解:

$2^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{4051}}^1$

素因数の和:4148

約数の個数: 60

約数和(自身を含む): 311517760

約数和(自身を除く): 183506160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 158, 200, 316, 395, 400, 632, 790, 1264, 1580, 1975, 3160, 3950, 4051, 6320, 7900, 8102, 15800, 16204, 20255, 31600, 32408, 40510, 64816, 81020, 101275, 162040, 202550, 320029, 324080, 405100, 640058, 810200, 1280116, 1600145, 1620400, 2560232, 3200290, 5120464, 6400580, 8000725, 12801160, 16001450, 25602320, 32002900, 64005800, 128011600]

約数ペア:

[(1, 128011600), (2, 64005800), (4, 32002900), (5, 25602320), (8, 16001450), (10, 12801160), (16, 8000725), (20, 6400580), (25, 5120464), (40, 3200290), (50, 2560232), (79, 1620400), (80, 1600145), (100, 1280116), (158, 810200), (200, 640058), (316, 405100), (395, 324080), (400, 320029), (632, 202550), (790, 162040), (1264, 101275), (1580, 81020), (1975, 64816), (3160, 40510), (3950, 32408), (4051, 31600), (6320, 20255), (7900, 16204), (8102, 15800)]