51026940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1439}}^1$

素因数の和:1651

約数の個数: 72

約数和(自身を含む): 155675520

約数和(自身を除く): 104648580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 985, 1182, 1439, 1773, 1970, 2364, 2878, 2955, 3546, 3940, 4317, 5756, 5910, 7092, 7195, 8634, 8865, 11820, 12951, 14390, 17268, 17730, 21585, 25902, 28780, 35460, 43170, 51804, 64755, 86340, 129510, 259020, 283483, 566966, 850449, 1133932, 1417415, 1700898, 2551347, 2834830, 3401796, 4252245, 5102694, 5669660, 8504490, 10205388, 12756735, 17008980, 25513470, 51026940]

約数ペア:

[(1, 51026940), (2, 25513470), (3, 17008980), (4, 12756735), (5, 10205388), (6, 8504490), (9, 5669660), (10, 5102694), (12, 4252245), (15, 3401796), (18, 2834830), (20, 2551347), (30, 1700898), (36, 1417415), (45, 1133932), (60, 850449), (90, 566966), (180, 283483), (197, 259020), (394, 129510), (591, 86340), (788, 64755), (985, 51804), (1182, 43170), (1439, 35460), (1773, 28780), (1970, 25902), (2364, 21585), (2878, 17730), (2955, 17268), (3546, 14390), (3940, 12951), (4317, 11820), (5756, 8865), (5910, 8634), (7092, 7195)]