131324840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{997}}^1$

素因数の和:1134

約数の個数: 64

約数和(自身を含む): 307184400

約数和(自身を除く): 175859560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 89, 148, 178, 185, 296, 356, 370, 445, 712, 740, 890, 997, 1480, 1780, 1994, 3293, 3560, 3988, 4985, 6586, 7976, 9970, 13172, 16465, 19940, 26344, 32930, 36889, 39880, 65860, 73778, 88733, 131720, 147556, 177466, 184445, 295112, 354932, 368890, 443665, 709864, 737780, 887330, 1475560, 1774660, 3283121, 3549320, 6566242, 13132484, 16415605, 26264968, 32831210, 65662420, 131324840]

約数ペア:

[(1, 131324840), (2, 65662420), (4, 32831210), (5, 26264968), (8, 16415605), (10, 13132484), (20, 6566242), (37, 3549320), (40, 3283121), (74, 1774660), (89, 1475560), (148, 887330), (178, 737780), (185, 709864), (296, 443665), (356, 368890), (370, 354932), (445, 295112), (712, 184445), (740, 177466), (890, 147556), (997, 131720), (1480, 88733), (1780, 73778), (1994, 65860), (3293, 39880), (3560, 36889), (3988, 32930), (4985, 26344), (6586, 19940), (7976, 16465), (9970, 13172)]