78873580

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{607}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 170069760

約数和(自身を除く): 91196180

約数列:

[1, 2, 4, 5, 10, 20, 73, 89, 146, 178, 292, 356, 365, 445, 607, 730, 890, 1214, 1460, 1780, 2428, 3035, 6070, 6497, 12140, 12994, 25988, 32485, 44311, 54023, 64970, 88622, 108046, 129940, 177244, 216092, 221555, 270115, 443110, 540230, 886220, 1080460, 3943679, 7887358, 15774716, 19718395, 39436790, 78873580]

約数ペア:

[(1, 78873580), (2, 39436790), (4, 19718395), (5, 15774716), (10, 7887358), (20, 3943679), (73, 1080460), (89, 886220), (146, 540230), (178, 443110), (292, 270115), (356, 221555), (365, 216092), (445, 177244), (607, 129940), (730, 108046), (890, 88622), (1214, 64970), (1460, 54023), (1780, 44311), (2428, 32485), (3035, 25988), (6070, 12994), (6497, 12140)]