81321720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{677681}}^1$

素因数の和:677695

約数の個数: 32

約数和(自身を含む): 243965520

約数和(自身を除く): 162643800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 677681, 1355362, 2033043, 2710724, 3388405, 4066086, 5421448, 6776810, 8132172, 10165215, 13553620, 16264344, 20330430, 27107240, 40660860, 81321720]

約数ペア:

[(1, 81321720), (2, 40660860), (3, 27107240), (4, 20330430), (5, 16264344), (6, 13553620), (8, 10165215), (10, 8132172), (12, 6776810), (15, 5421448), (20, 4066086), (24, 3388405), (30, 2710724), (40, 2033043), (60, 1355362), (120, 677681)]