72716540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{279679}}^1$

素因数の和:279701

約数の個数: 24

約数和(自身を含む): 164451840

約数和(自身を除く): 91735300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 279679, 559358, 1118716, 1398395, 2796790, 3635827, 5593580, 7271654, 14543308, 18179135, 36358270, 72716540]

約数ペア:

[(1, 72716540), (2, 36358270), (4, 18179135), (5, 14543308), (10, 7271654), (13, 5593580), (20, 3635827), (26, 2796790), (52, 1398395), (65, 1118716), (130, 559358), (260, 279679)]