20194839580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{337}}^2\times {\mathrm{523}}^1$

素因数の和:1223

約数の個数: 72

約数和(自身を含む): 45123574608

約数和(自身を除く): 24928735028

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 337, 340, 523, 674, 1046, 1348, 1685, 2092, 2615, 3370, 5230, 5729, 6740, 8891, 10460, 11458, 17782, 22916, 28645, 35564, 44455, 57290, 88910, 113569, 114580, 176251, 177820, 227138, 352502, 454276, 567845, 705004, 881255, 1135690, 1762510, 1930673, 2271380, 2996267, 3525020, 3861346, 5992534, 7722692, 9653365, 11985068, 14981335, 19306730, 29962670, 38613460, 59396587, 59925340, 118793174, 237586348, 296982935, 593965870, 1009741979, 1187931740, 2019483958, 4038967916, 5048709895, 10097419790, 20194839580]

約数ペア:

[(1, 20194839580), (2, 10097419790), (4, 5048709895), (5, 4038967916), (10, 2019483958), (17, 1187931740), (20, 1009741979), (34, 593965870), (68, 296982935), (85, 237586348), (170, 118793174), (337, 59925340), (340, 59396587), (523, 38613460), (674, 29962670), (1046, 19306730), (1348, 14981335), (1685, 11985068), (2092, 9653365), (2615, 7722692), (3370, 5992534), (5230, 3861346), (5729, 3525020), (6740, 2996267), (8891, 2271380), (10460, 1930673), (11458, 1762510), (17782, 1135690), (22916, 881255), (28645, 705004), (35564, 567845), (44455, 454276), (57290, 352502), (88910, 227138), (113569, 177820), (114580, 176251)]