128982140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31769}}^1$

素因数の和:31814

約数の個数: 48

約数和(自身を含む): 320241600

約数和(自身を除く): 191259460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 31769, 63538, 127076, 158845, 222383, 317690, 444766, 635380, 889532, 921301, 1111915, 1842602, 2223830, 3685204, 4447660, 4606505, 6449107, 9213010, 12898214, 18426020, 25796428, 32245535, 64491070, 128982140]

約数ペア:

[(1, 128982140), (2, 64491070), (4, 32245535), (5, 25796428), (7, 18426020), (10, 12898214), (14, 9213010), (20, 6449107), (28, 4606505), (29, 4447660), (35, 3685204), (58, 2223830), (70, 1842602), (116, 1111915), (140, 921301), (145, 889532), (203, 635380), (290, 444766), (406, 317690), (580, 222383), (812, 158845), (1015, 127076), (2030, 63538), (4060, 31769)]