420762980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{9151}}^1$

素因数の和:9201

約数の個数: 72

約数和(自身を含む): 1022461440

約数和(自身を除く): 601698460

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 484, 605, 836, 1045, 1210, 2090, 2299, 2420, 4180, 4598, 9151, 9196, 11495, 18302, 22990, 36604, 45755, 45980, 91510, 100661, 173869, 183020, 201322, 347738, 402644, 503305, 695476, 869345, 1006610, 1107271, 1738690, 1912559, 2013220, 2214542, 3477380, 3825118, 4429084, 5536355, 7650236, 9562795, 11072710, 19125590, 21038149, 22145420, 38251180, 42076298, 84152596, 105190745, 210381490, 420762980]

約数ペア:

[(1, 420762980), (2, 210381490), (4, 105190745), (5, 84152596), (10, 42076298), (11, 38251180), (19, 22145420), (20, 21038149), (22, 19125590), (38, 11072710), (44, 9562795), (55, 7650236), (76, 5536355), (95, 4429084), (110, 3825118), (121, 3477380), (190, 2214542), (209, 2013220), (220, 1912559), (242, 1738690), (380, 1107271), (418, 1006610), (484, 869345), (605, 695476), (836, 503305), (1045, 402644), (1210, 347738), (2090, 201322), (2299, 183020), (2420, 173869), (4180, 100661), (4598, 91510), (9151, 45980), (9196, 45755), (11495, 36604), (18302, 22990)]