155004680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{397}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 359346240

約数和(自身を除く): 204341560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 227, 344, 397, 430, 454, 794, 860, 908, 1135, 1588, 1720, 1816, 1985, 2270, 3176, 3970, 4540, 7940, 9080, 9761, 15880, 17071, 19522, 34142, 39044, 48805, 68284, 78088, 85355, 90119, 97610, 136568, 170710, 180238, 195220, 341420, 360476, 390440, 450595, 682840, 720952, 901190, 1802380, 3604760, 3875117, 7750234, 15500468, 19375585, 31000936, 38751170, 77502340, 155004680]

約数ペア:

[(1, 155004680), (2, 77502340), (4, 38751170), (5, 31000936), (8, 19375585), (10, 15500468), (20, 7750234), (40, 3875117), (43, 3604760), (86, 1802380), (172, 901190), (215, 720952), (227, 682840), (344, 450595), (397, 390440), (430, 360476), (454, 341420), (794, 195220), (860, 180238), (908, 170710), (1135, 136568), (1588, 97610), (1720, 90119), (1816, 85355), (1985, 78088), (2270, 68284), (3176, 48805), (3970, 39044), (4540, 34142), (7940, 19522), (9080, 17071), (9761, 15880)]