16045880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 38966400

約数和(自身を除く): 22920520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 491, 760, 817, 860, 982, 1634, 1720, 1964, 2455, 3268, 3928, 4085, 4910, 6536, 8170, 9329, 9820, 16340, 18658, 19640, 21113, 32680, 37316, 42226, 46645, 74632, 84452, 93290, 105565, 168904, 186580, 211130, 373160, 401147, 422260, 802294, 844520, 1604588, 2005735, 3209176, 4011470, 8022940, 16045880]

約数ペア:

[(1, 16045880), (2, 8022940), (4, 4011470), (5, 3209176), (8, 2005735), (10, 1604588), (19, 844520), (20, 802294), (38, 422260), (40, 401147), (43, 373160), (76, 211130), (86, 186580), (95, 168904), (152, 105565), (172, 93290), (190, 84452), (215, 74632), (344, 46645), (380, 42226), (430, 37316), (491, 32680), (760, 21113), (817, 19640), (860, 18658), (982, 16340), (1634, 9820), (1720, 9329), (1964, 8170), (2455, 6536), (3268, 4910), (3928, 4085)]