212899940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1$

素因数の和:154

約数の個数: 144

約数和(自身を含む): 540509760

約数和(自身を除く): 327609820

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 31, 38, 44, 53, 55, 62, 76, 95, 106, 110, 124, 155, 190, 209, 212, 220, 265, 310, 341, 380, 418, 530, 583, 589, 620, 682, 836, 961, 1007, 1045, 1060, 1166, 1178, 1364, 1643, 1705, 1922, 2014, 2090, 2332, 2356, 2915, 2945, 3286, 3410, 3844, 4028, 4180, 4805, 5035, 5830, 5890, 6479, 6572, 6820, 8215, 9610, 10070, 10571, 11077, 11660, 11780, 12958, 16430, 18073, 18259, 19220, 20140, 21142, 22154, 25916, 31217, 32395, 32860, 36146, 36518, 42284, 44308, 50933, 52855, 55385, 62434, 64790, 72292, 73036, 90365, 91295, 101866, 105710, 110770, 124868, 129580, 156085, 180730, 182590, 200849, 203732, 211420, 221540, 254665, 312170, 343387, 361460, 365180, 401698, 509330, 560263, 624340, 686774, 803396, 967727, 1004245, 1018660, 1120526, 1373548, 1716935, 1935454, 2008490, 2241052, 2801315, 3433870, 3870908, 4016980, 4838635, 5602630, 6867740, 9677270, 10644997, 11205260, 19354540, 21289994, 42579988, 53224985, 106449970, 212899940]

約数ペア:

[(1, 212899940), (2, 106449970), (4, 53224985), (5, 42579988), (10, 21289994), (11, 19354540), (19, 11205260), (20, 10644997), (22, 9677270), (31, 6867740), (38, 5602630), (44, 4838635), (53, 4016980), (55, 3870908), (62, 3433870), (76, 2801315), (95, 2241052), (106, 2008490), (110, 1935454), (124, 1716935), (155, 1373548), (190, 1120526), (209, 1018660), (212, 1004245), (220, 967727), (265, 803396), (310, 686774), (341, 624340), (380, 560263), (418, 509330), (530, 401698), (583, 365180), (589, 361460), (620, 343387), (682, 312170), (836, 254665), (961, 221540), (1007, 211420), (1045, 203732), (1060, 200849), (1166, 182590), (1178, 180730), (1364, 156085), (1643, 129580), (1705, 124868), (1922, 110770), (2014, 105710), (2090, 101866), (2332, 91295), (2356, 90365), (2915, 73036), (2945, 72292), (3286, 64790), (3410, 62434), (3844, 55385), (4028, 52855), (4180, 50933), (4805, 44308), (5035, 42284), (5830, 36518), (5890, 36146), (6479, 32860), (6572, 32395), (6820, 31217), (8215, 25916), (9610, 22154), (10070, 21142), (10571, 20140), (11077, 19220), (11660, 18259), (11780, 18073), (12958, 16430)]