81427970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{13327}}^1$

素因数の和:13394

約数の個数: 32

約数和(自身を含む): 161215488

約数和(自身を除く): 79787518

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 235, 470, 611, 1222, 3055, 6110, 13327, 26654, 66635, 133270, 173251, 346502, 626369, 866255, 1252738, 1732510, 3131845, 6263690, 8142797, 16285594, 40713985, 81427970]

約数ペア:

[(1, 81427970), (2, 40713985), (5, 16285594), (10, 8142797), (13, 6263690), (26, 3131845), (47, 1732510), (65, 1252738), (94, 866255), (130, 626369), (235, 346502), (470, 173251), (611, 133270), (1222, 66635), (3055, 26654), (6110, 13327)]