81460340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{2467}}^1$

素因数の和:2616

約数の個数: 48

約数和(自身を含む): 185751552

約数和(自身を除く): 104291212

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 1270, 1651, 2467, 2540, 3302, 4934, 6604, 8255, 9868, 12335, 16510, 24670, 32071, 33020, 49340, 64142, 128284, 160355, 313309, 320710, 626618, 641420, 1253236, 1566545, 3133090, 4073017, 6266180, 8146034, 16292068, 20365085, 40730170, 81460340]

約数ペア:

[(1, 81460340), (2, 40730170), (4, 20365085), (5, 16292068), (10, 8146034), (13, 6266180), (20, 4073017), (26, 3133090), (52, 1566545), (65, 1253236), (127, 641420), (130, 626618), (254, 320710), (260, 313309), (508, 160355), (635, 128284), (1270, 64142), (1651, 49340), (2467, 33020), (2540, 32071), (3302, 24670), (4934, 16510), (6604, 12335), (8255, 9868)]