66605900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^2\times {\mathrm{179}}^1$

素因数の和:315

約数の個数: 54

約数和(自身を含む): 147763980

約数和(自身を除く): 81158080

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 179, 244, 305, 358, 610, 716, 895, 1220, 1525, 1790, 3050, 3580, 3721, 4475, 6100, 7442, 8950, 10919, 14884, 17900, 18605, 21838, 37210, 43676, 54595, 74420, 93025, 109190, 186050, 218380, 272975, 372100, 545950, 666059, 1091900, 1332118, 2664236, 3330295, 6660590, 13321180, 16651475, 33302950, 66605900]

約数ペア:

[(1, 66605900), (2, 33302950), (4, 16651475), (5, 13321180), (10, 6660590), (20, 3330295), (25, 2664236), (50, 1332118), (61, 1091900), (100, 666059), (122, 545950), (179, 372100), (244, 272975), (305, 218380), (358, 186050), (610, 109190), (716, 93025), (895, 74420), (1220, 54595), (1525, 43676), (1790, 37210), (3050, 21838), (3580, 18605), (3721, 17900), (4475, 14884), (6100, 10919), (7442, 8950)]