55031980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1493}}^1$

素因数の和:1618

約数の個数: 48

約数和(自身を含む): 122986080

約数和(自身を除く): 67954100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 970, 1493, 1843, 1940, 2986, 3686, 5972, 7372, 7465, 9215, 14930, 18430, 28367, 29860, 36860, 56734, 113468, 141835, 144821, 283670, 289642, 567340, 579284, 724105, 1448210, 2751599, 2896420, 5503198, 11006396, 13757995, 27515990, 55031980]

約数ペア:

[(1, 55031980), (2, 27515990), (4, 13757995), (5, 11006396), (10, 5503198), (19, 2896420), (20, 2751599), (38, 1448210), (76, 724105), (95, 579284), (97, 567340), (190, 289642), (194, 283670), (380, 144821), (388, 141835), (485, 113468), (970, 56734), (1493, 36860), (1843, 29860), (1940, 28367), (2986, 18430), (3686, 14930), (5972, 9215), (7372, 7465)]