18797740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{367}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 42844032

約数和(自身を除く): 24046292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 367, 394, 734, 788, 985, 1468, 1835, 1970, 2561, 3670, 3940, 4771, 5122, 7340, 9542, 10244, 12805, 19084, 23855, 25610, 47710, 51220, 72299, 95420, 144598, 289196, 361495, 722990, 939887, 1445980, 1879774, 3759548, 4699435, 9398870, 18797740]

約数ペア:

[(1, 18797740), (2, 9398870), (4, 4699435), (5, 3759548), (10, 1879774), (13, 1445980), (20, 939887), (26, 722990), (52, 361495), (65, 289196), (130, 144598), (197, 95420), (260, 72299), (367, 51220), (394, 47710), (734, 25610), (788, 23855), (985, 19084), (1468, 12805), (1835, 10244), (1970, 9542), (2561, 7340), (3670, 5122), (3940, 4771)]