87445820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{56783}}^1$

素因数の和:56810

約数の個数: 48

約数和(自身を含む): 228953088

約数和(自身を除く): 141507268

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 56783, 113566, 227132, 283915, 397481, 567830, 624613, 794962, 1135660, 1249226, 1589924, 1987405, 2498452, 3123065, 3974810, 4372291, 6246130, 7949620, 8744582, 12492260, 17489164, 21861455, 43722910, 87445820]

約数ペア:

[(1, 87445820), (2, 43722910), (4, 21861455), (5, 17489164), (7, 12492260), (10, 8744582), (11, 7949620), (14, 6246130), (20, 4372291), (22, 3974810), (28, 3123065), (35, 2498452), (44, 1987405), (55, 1589924), (70, 1249226), (77, 1135660), (110, 794962), (140, 624613), (154, 567830), (220, 397481), (308, 283915), (385, 227132), (770, 113566), (1540, 56783)]