20026286

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 15535954

約数列:

[1, 2, 7, 14, 41, 82, 139, 251, 278, 287, 502, 574, 973, 1757, 1946, 3514, 5699, 10291, 11398, 20582, 34889, 39893, 69778, 72037, 79786, 144074, 244223, 488446, 1430449, 2860898, 10013143, 20026286]

約数ペア:

[(1, 20026286), (2, 10013143), (7, 2860898), (14, 1430449), (41, 488446), (82, 244223), (139, 144074), (251, 79786), (278, 72037), (287, 69778), (502, 39893), (574, 34889), (973, 20582), (1757, 11398), (1946, 10291), (3514, 5699)]