20671036688

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{409}}^1\times {\mathrm{19379}}^1$

素因数の和:19959

約数の個数: 40

約数和(自身を含む): 40396447200

約数和(自身を除く): 19725410512

約数列:

[1, 2, 4, 8, 16, 163, 326, 409, 652, 818, 1304, 1636, 2608, 3272, 6544, 19379, 38758, 66667, 77516, 133334, 155032, 266668, 310064, 533336, 1066672, 3158777, 6317554, 7926011, 12635108, 15852022, 25270216, 31704044, 50540432, 63408088, 126816176, 1291939793, 2583879586, 5167759172, 10335518344, 20671036688]

約数ペア:

[(1, 20671036688), (2, 10335518344), (4, 5167759172), (8, 2583879586), (16, 1291939793), (163, 126816176), (326, 63408088), (409, 50540432), (652, 31704044), (818, 25270216), (1304, 15852022), (1636, 12635108), (2608, 7926011), (3272, 6317554), (6544, 3158777), (19379, 1066672), (38758, 533336), (66667, 310064), (77516, 266668), (133334, 155032)]