63946220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{18919}}^1$

素因数の和:18954

約数の個数: 36

約数和(自身を含む): 145419120

約数和(自身を除く): 81472900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 18919, 37838, 75676, 94595, 189190, 245947, 378380, 491894, 983788, 1229735, 2459470, 3197311, 4918940, 6394622, 12789244, 15986555, 31973110, 63946220]

約数ペア:

[(1, 63946220), (2, 31973110), (4, 15986555), (5, 12789244), (10, 6394622), (13, 4918940), (20, 3197311), (26, 2459470), (52, 1229735), (65, 983788), (130, 491894), (169, 378380), (260, 245947), (338, 189190), (676, 94595), (845, 75676), (1690, 37838), (3380, 18919)]