12776840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 30164400

約数和(自身を除く): 17387560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 89, 97, 148, 178, 185, 194, 296, 356, 370, 388, 445, 485, 712, 740, 776, 890, 970, 1480, 1780, 1940, 3293, 3560, 3589, 3880, 6586, 7178, 8633, 13172, 14356, 16465, 17266, 17945, 26344, 28712, 32930, 34532, 35890, 43165, 65860, 69064, 71780, 86330, 131720, 143560, 172660, 319421, 345320, 638842, 1277684, 1597105, 2555368, 3194210, 6388420, 12776840]

約数ペア:

[(1, 12776840), (2, 6388420), (4, 3194210), (5, 2555368), (8, 1597105), (10, 1277684), (20, 638842), (37, 345320), (40, 319421), (74, 172660), (89, 143560), (97, 131720), (148, 86330), (178, 71780), (185, 69064), (194, 65860), (296, 43165), (356, 35890), (370, 34532), (388, 32930), (445, 28712), (485, 26344), (712, 17945), (740, 17266), (776, 16465), (890, 14356), (970, 13172), (1480, 8633), (1780, 7178), (1940, 6586), (3293, 3880), (3560, 3589)]