205910980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{49261}}^1$

素因数の和:49300

約数の個数: 48

約数和(自身を含む): 496560960

約数和(自身を除く): 290649980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 49261, 98522, 197044, 246305, 492610, 541871, 935959, 985220, 1083742, 1871918, 2167484, 2709355, 3743836, 4679795, 5418710, 9359590, 10295549, 10837420, 18719180, 20591098, 41182196, 51477745, 102955490, 205910980]

約数ペア:

[(1, 205910980), (2, 102955490), (4, 51477745), (5, 41182196), (10, 20591098), (11, 18719180), (19, 10837420), (20, 10295549), (22, 9359590), (38, 5418710), (44, 4679795), (55, 3743836), (76, 2709355), (95, 2167484), (110, 1871918), (190, 1083742), (209, 985220), (220, 935959), (380, 541871), (418, 492610), (836, 246305), (1045, 197044), (2090, 98522), (4180, 49261)]