71077180

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{547}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 153286560

約数和(自身を除く): 82209380

約数列:

[1, 2, 4, 5, 10, 20, 73, 89, 146, 178, 292, 356, 365, 445, 547, 730, 890, 1094, 1460, 1780, 2188, 2735, 5470, 6497, 10940, 12994, 25988, 32485, 39931, 48683, 64970, 79862, 97366, 129940, 159724, 194732, 199655, 243415, 399310, 486830, 798620, 973660, 3553859, 7107718, 14215436, 17769295, 35538590, 71077180]

約数ペア:

[(1, 71077180), (2, 35538590), (4, 17769295), (5, 14215436), (10, 7107718), (20, 3553859), (73, 973660), (89, 798620), (146, 486830), (178, 399310), (292, 243415), (356, 199655), (365, 194732), (445, 159724), (547, 129940), (730, 97366), (890, 79862), (1094, 64970), (1460, 48683), (1780, 39931), (2188, 32485), (2735, 25988), (5470, 12994), (6497, 10940)]