20937014780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{241}}^1\times {\mathrm{35899}}^1$

素因数の和:36171

約数の個数: 72

約数和(自身を含む): 48530050800

約数和(自身を除く): 27593036020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 241, 242, 482, 484, 605, 964, 1205, 1210, 2410, 2420, 2651, 4820, 5302, 10604, 13255, 26510, 29161, 35899, 53020, 58322, 71798, 116644, 143596, 145805, 179495, 291610, 358990, 394889, 583220, 717980, 789778, 1579556, 1974445, 3948890, 4343779, 7897780, 8651659, 8687558, 17303318, 17375116, 21718895, 34606636, 43258295, 43437790, 86516590, 86875580, 95168249, 173033180, 190336498, 380672996, 475841245, 951682490, 1046850739, 1903364980, 2093701478, 4187402956, 5234253695, 10468507390, 20937014780]

約数ペア:

[(1, 20937014780), (2, 10468507390), (4, 5234253695), (5, 4187402956), (10, 2093701478), (11, 1903364980), (20, 1046850739), (22, 951682490), (44, 475841245), (55, 380672996), (110, 190336498), (121, 173033180), (220, 95168249), (241, 86875580), (242, 86516590), (482, 43437790), (484, 43258295), (605, 34606636), (964, 21718895), (1205, 17375116), (1210, 17303318), (2410, 8687558), (2420, 8651659), (2651, 7897780), (4820, 4343779), (5302, 3948890), (10604, 1974445), (13255, 1579556), (26510, 789778), (29161, 717980), (35899, 583220), (53020, 394889), (58322, 358990), (71798, 291610), (116644, 179495), (143596, 145805)]