55890220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1847}}^1$

素因数の和:1962

約数の個数: 48

約数和(自身を含む): 125737920

約数和(自身を除く): 69847700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 890, 1513, 1780, 1847, 3026, 3694, 6052, 7388, 7565, 9235, 15130, 18470, 30260, 31399, 36940, 62798, 125596, 156995, 164383, 313990, 328766, 627980, 657532, 821915, 1643830, 2794511, 3287660, 5589022, 11178044, 13972555, 27945110, 55890220]

約数ペア:

[(1, 55890220), (2, 27945110), (4, 13972555), (5, 11178044), (10, 5589022), (17, 3287660), (20, 2794511), (34, 1643830), (68, 821915), (85, 657532), (89, 627980), (170, 328766), (178, 313990), (340, 164383), (356, 156995), (445, 125596), (890, 62798), (1513, 36940), (1780, 31399), (1847, 30260), (3026, 18470), (3694, 15130), (6052, 9235), (7388, 7565)]