218596180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{1531}}^1$

素因数の和:1621

約数の個数: 72

約数和(自身を含む): 513465120

約数和(自身を除く): 294868940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 121, 220, 236, 242, 295, 484, 590, 605, 649, 1180, 1210, 1298, 1531, 2420, 2596, 3062, 3245, 6124, 6490, 7139, 7655, 12980, 14278, 15310, 16841, 28556, 30620, 33682, 35695, 67364, 71390, 84205, 90329, 142780, 168410, 180658, 185251, 336820, 361316, 370502, 451645, 741004, 903290, 926255, 993619, 1806580, 1852510, 1987238, 3705020, 3974476, 4968095, 9936190, 10929809, 19872380, 21859618, 43719236, 54649045, 109298090, 218596180]

約数ペア:

[(1, 218596180), (2, 109298090), (4, 54649045), (5, 43719236), (10, 21859618), (11, 19872380), (20, 10929809), (22, 9936190), (44, 4968095), (55, 3974476), (59, 3705020), (110, 1987238), (118, 1852510), (121, 1806580), (220, 993619), (236, 926255), (242, 903290), (295, 741004), (484, 451645), (590, 370502), (605, 361316), (649, 336820), (1180, 185251), (1210, 180658), (1298, 168410), (1531, 142780), (2420, 90329), (2596, 84205), (3062, 71390), (3245, 67364), (6124, 35695), (6490, 33682), (7139, 30620), (7655, 28556), (12980, 16841), (14278, 15310)]