353994820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{433}}^1\times {\mathrm{997}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 764044848

約数和(自身を除く): 410050028

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 433, 820, 866, 997, 1732, 1994, 2165, 3988, 4330, 4985, 8660, 9970, 17753, 19940, 35506, 40877, 71012, 81754, 88765, 163508, 177530, 204385, 355060, 408770, 431701, 817540, 863402, 1726804, 2158505, 4317010, 8634020, 17699741, 35399482, 70798964, 88498705, 176997410, 353994820]

約数ペア:

[(1, 353994820), (2, 176997410), (4, 88498705), (5, 70798964), (10, 35399482), (20, 17699741), (41, 8634020), (82, 4317010), (164, 2158505), (205, 1726804), (410, 863402), (433, 817540), (820, 431701), (866, 408770), (997, 355060), (1732, 204385), (1994, 177530), (2165, 163508), (3988, 88765), (4330, 81754), (4985, 71012), (8660, 40877), (9970, 35506), (17753, 19940)]