20138508

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1163}}^1$

素因数の和:1223

約数の個数: 72

約数和(自身を含む): 56351568

約数和(自身を除く): 36213060

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 37, 39, 52, 74, 78, 111, 117, 148, 156, 222, 234, 333, 444, 468, 481, 666, 962, 1163, 1332, 1443, 1924, 2326, 2886, 3489, 4329, 4652, 5772, 6978, 8658, 10467, 13956, 15119, 17316, 20934, 30238, 41868, 43031, 45357, 60476, 86062, 90714, 129093, 136071, 172124, 181428, 258186, 272142, 387279, 516372, 544284, 559403, 774558, 1118806, 1549116, 1678209, 2237612, 3356418, 5034627, 6712836, 10069254, 20138508]

約数ペア:

[(1, 20138508), (2, 10069254), (3, 6712836), (4, 5034627), (6, 3356418), (9, 2237612), (12, 1678209), (13, 1549116), (18, 1118806), (26, 774558), (36, 559403), (37, 544284), (39, 516372), (52, 387279), (74, 272142), (78, 258186), (111, 181428), (117, 172124), (148, 136071), (156, 129093), (222, 90714), (234, 86062), (333, 60476), (444, 45357), (468, 43031), (481, 41868), (666, 30238), (962, 20934), (1163, 17316), (1332, 15119), (1443, 13956), (1924, 10467), (2326, 8658), (2886, 6978), (3489, 5772), (4329, 4652)]