213289780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:481

約数の個数: 96

約数和(自身を含む): 512023680

約数和(自身を除く): 298733900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 101, 110, 116, 145, 202, 220, 290, 319, 331, 404, 505, 580, 638, 662, 1010, 1111, 1276, 1324, 1595, 1655, 2020, 2222, 2929, 3190, 3310, 3641, 4444, 5555, 5858, 6380, 6620, 7282, 9599, 11110, 11716, 14564, 14645, 18205, 19198, 22220, 29290, 32219, 33431, 36410, 38396, 47995, 58580, 64438, 66862, 72820, 95990, 105589, 128876, 133724, 161095, 167155, 191980, 211178, 322190, 334310, 367741, 422356, 527945, 644380, 668620, 735482, 969499, 1055890, 1470964, 1838705, 1938998, 2111780, 3677410, 3877996, 4847495, 7354820, 9694990, 10664489, 19389980, 21328978, 42657956, 53322445, 106644890, 213289780]

約数ペア:

[(1, 213289780), (2, 106644890), (4, 53322445), (5, 42657956), (10, 21328978), (11, 19389980), (20, 10664489), (22, 9694990), (29, 7354820), (44, 4847495), (55, 3877996), (58, 3677410), (101, 2111780), (110, 1938998), (116, 1838705), (145, 1470964), (202, 1055890), (220, 969499), (290, 735482), (319, 668620), (331, 644380), (404, 527945), (505, 422356), (580, 367741), (638, 334310), (662, 322190), (1010, 211178), (1111, 191980), (1276, 167155), (1324, 161095), (1595, 133724), (1655, 128876), (2020, 105589), (2222, 95990), (2929, 72820), (3190, 66862), (3310, 64438), (3641, 58580), (4444, 47995), (5555, 38396), (5858, 36410), (6380, 33431), (6620, 32219), (7282, 29290), (9599, 22220), (11110, 19198), (11716, 18205), (14564, 14645)]