51906580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:361

約数の個数: 72

約数和(自身を含む): 121663080

約数和(自身を除く): 69756500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 121, 178, 220, 241, 242, 356, 445, 482, 484, 605, 890, 964, 979, 1205, 1210, 1780, 1958, 2410, 2420, 2651, 3916, 4820, 4895, 5302, 9790, 10604, 10769, 13255, 19580, 21449, 21538, 26510, 29161, 42898, 43076, 53020, 53845, 58322, 85796, 107245, 107690, 116644, 145805, 214490, 215380, 235939, 291610, 428980, 471878, 583220, 943756, 1179695, 2359390, 2595329, 4718780, 5190658, 10381316, 12976645, 25953290, 51906580]

約数ペア:

[(1, 51906580), (2, 25953290), (4, 12976645), (5, 10381316), (10, 5190658), (11, 4718780), (20, 2595329), (22, 2359390), (44, 1179695), (55, 943756), (89, 583220), (110, 471878), (121, 428980), (178, 291610), (220, 235939), (241, 215380), (242, 214490), (356, 145805), (445, 116644), (482, 107690), (484, 107245), (605, 85796), (890, 58322), (964, 53845), (979, 53020), (1205, 43076), (1210, 42898), (1780, 29161), (1958, 26510), (2410, 21538), (2420, 21449), (2651, 19580), (3916, 13255), (4820, 10769), (4895, 10604), (5302, 9790)]