18685360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{647}}^1$

素因数の和:698

約数の個数: 60

約数和(自身を含む): 45921168

約数和(自身を除く): 27235808

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 647, 722, 760, 1294, 1444, 1520, 1805, 2588, 2888, 3235, 3610, 5176, 5776, 6470, 7220, 10352, 12293, 12940, 14440, 24586, 25880, 28880, 49172, 51760, 61465, 98344, 122930, 196688, 233567, 245860, 467134, 491720, 934268, 983440, 1167835, 1868536, 2335670, 3737072, 4671340, 9342680, 18685360]

約数ペア:

[(1, 18685360), (2, 9342680), (4, 4671340), (5, 3737072), (8, 2335670), (10, 1868536), (16, 1167835), (19, 983440), (20, 934268), (38, 491720), (40, 467134), (76, 245860), (80, 233567), (95, 196688), (152, 122930), (190, 98344), (304, 61465), (361, 51760), (380, 49172), (647, 28880), (722, 25880), (760, 24586), (1294, 14440), (1444, 12940), (1520, 12293), (1805, 10352), (2588, 7220), (2888, 6470), (3235, 5776), (3610, 5176)]