16918360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 40629600

約数和(自身を除く): 23711240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 113, 152, 190, 197, 226, 380, 394, 452, 565, 760, 788, 904, 985, 1130, 1576, 1970, 2147, 2260, 3743, 3940, 4294, 4520, 7486, 7880, 8588, 10735, 14972, 17176, 18715, 21470, 22261, 29944, 37430, 42940, 44522, 74860, 85880, 89044, 111305, 149720, 178088, 222610, 422959, 445220, 845918, 890440, 1691836, 2114795, 3383672, 4229590, 8459180, 16918360]

約数ペア:

[(1, 16918360), (2, 8459180), (4, 4229590), (5, 3383672), (8, 2114795), (10, 1691836), (19, 890440), (20, 845918), (38, 445220), (40, 422959), (76, 222610), (95, 178088), (113, 149720), (152, 111305), (190, 89044), (197, 85880), (226, 74860), (380, 44522), (394, 42940), (452, 37430), (565, 29944), (760, 22261), (788, 21470), (904, 18715), (985, 17176), (1130, 14972), (1576, 10735), (1970, 8588), (2147, 7880), (2260, 7486), (3743, 4520), (3940, 4294)]