20880909790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{45233}}^1$

素因数の和:45373

約数の個数: 64

約数和(自身を含む): 41857010496

約数和(自身を除く): 20976100706

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 67, 106, 130, 134, 265, 335, 530, 670, 689, 871, 1378, 1742, 3445, 3551, 4355, 6890, 7102, 8710, 17755, 35510, 45233, 46163, 90466, 92326, 226165, 230815, 452330, 461630, 588029, 1176058, 2397349, 2940145, 3030611, 4794698, 5880290, 6061222, 11986745, 15153055, 23973490, 30306110, 31165537, 39397943, 62331074, 78795886, 155827685, 160622383, 196989715, 311655370, 321244766, 393979430, 803111915, 1606223830, 2088090979, 4176181958, 10440454895, 20880909790]

約数ペア:

[(1, 20880909790), (2, 10440454895), (5, 4176181958), (10, 2088090979), (13, 1606223830), (26, 803111915), (53, 393979430), (65, 321244766), (67, 311655370), (106, 196989715), (130, 160622383), (134, 155827685), (265, 78795886), (335, 62331074), (530, 39397943), (670, 31165537), (689, 30306110), (871, 23973490), (1378, 15153055), (1742, 11986745), (3445, 6061222), (3551, 5880290), (4355, 4794698), (6890, 3030611), (7102, 2940145), (8710, 2397349), (17755, 1176058), (35510, 588029), (45233, 461630), (46163, 452330), (90466, 230815), (92326, 226165)]