128764900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 329353920

約数和(自身を除く): 200589020

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 61, 76, 95, 100, 101, 110, 122, 190, 202, 209, 220, 244, 275, 305, 380, 404, 418, 475, 505, 550, 610, 671, 836, 950, 1010, 1045, 1100, 1111, 1159, 1220, 1342, 1525, 1900, 1919, 2020, 2090, 2222, 2318, 2525, 2684, 3050, 3355, 3838, 4180, 4444, 4636, 5050, 5225, 5555, 5795, 6100, 6161, 6710, 7676, 9595, 10100, 10450, 11110, 11590, 12322, 12749, 13420, 16775, 19190, 20900, 21109, 22220, 23180, 24644, 25498, 27775, 28975, 30805, 33550, 38380, 42218, 47975, 50996, 55550, 57950, 61610, 63745, 67100, 67771, 84436, 95950, 105545, 111100, 115900, 117059, 123220, 127490, 135542, 154025, 191900, 211090, 234118, 254980, 271084, 308050, 318725, 338855, 422180, 468236, 527725, 585295, 616100, 637450, 677710, 1055450, 1170590, 1274900, 1287649, 1355420, 1694275, 2110900, 2341180, 2575298, 2926475, 3388550, 5150596, 5852950, 6438245, 6777100, 11705900, 12876490, 25752980, 32191225, 64382450, 128764900]

約数ペア:

[(1, 128764900), (2, 64382450), (4, 32191225), (5, 25752980), (10, 12876490), (11, 11705900), (19, 6777100), (20, 6438245), (22, 5852950), (25, 5150596), (38, 3388550), (44, 2926475), (50, 2575298), (55, 2341180), (61, 2110900), (76, 1694275), (95, 1355420), (100, 1287649), (101, 1274900), (110, 1170590), (122, 1055450), (190, 677710), (202, 637450), (209, 616100), (220, 585295), (244, 527725), (275, 468236), (305, 422180), (380, 338855), (404, 318725), (418, 308050), (475, 271084), (505, 254980), (550, 234118), (610, 211090), (671, 191900), (836, 154025), (950, 135542), (1010, 127490), (1045, 123220), (1100, 117059), (1111, 115900), (1159, 111100), (1220, 105545), (1342, 95950), (1525, 84436), (1900, 67771), (1919, 67100), (2020, 63745), (2090, 61610), (2222, 57950), (2318, 55550), (2525, 50996), (2684, 47975), (3050, 42218), (3355, 38380), (3838, 33550), (4180, 30805), (4444, 28975), (4636, 27775), (5050, 25498), (5225, 24644), (5555, 23180), (5795, 22220), (6100, 21109), (6161, 20900), (6710, 19190), (7676, 16775), (9595, 13420), (10100, 12749), (10450, 12322), (11110, 11590)]