18003780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3449}}^1$

素因数の和:3493

約数の個数: 72

約数和(自身を含む): 56511000

約数和(自身を除く): 38507220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 3449, 5220, 6898, 10347, 13796, 17245, 20694, 31041, 34490, 41388, 51735, 62082, 68980, 100021, 103470, 124164, 155205, 200042, 206940, 300063, 310410, 400084, 500105, 600126, 620820, 900189, 1000210, 1200252, 1500315, 1800378, 2000420, 3000630, 3600756, 4500945, 6001260, 9001890, 18003780]

約数ペア:

[(1, 18003780), (2, 9001890), (3, 6001260), (4, 4500945), (5, 3600756), (6, 3000630), (9, 2000420), (10, 1800378), (12, 1500315), (15, 1200252), (18, 1000210), (20, 900189), (29, 620820), (30, 600126), (36, 500105), (45, 400084), (58, 310410), (60, 300063), (87, 206940), (90, 200042), (116, 155205), (145, 124164), (174, 103470), (180, 100021), (261, 68980), (290, 62082), (348, 51735), (435, 41388), (522, 34490), (580, 31041), (870, 20694), (1044, 17245), (1305, 13796), (1740, 10347), (2610, 6898), (3449, 5220)]