978171440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{298223}}^1$

素因数の和:298277

約数の個数: 40

約数和(自身を含む): 2329725888

約数和(自身を除く): 1351554448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 298223, 596446, 1192892, 1491115, 2385784, 2982230, 4771568, 5964460, 11928920, 12227143, 23857840, 24454286, 48908572, 61135715, 97817144, 122271430, 195634288, 244542860, 489085720, 978171440]

約数ペア:

[(1, 978171440), (2, 489085720), (4, 244542860), (5, 195634288), (8, 122271430), (10, 97817144), (16, 61135715), (20, 48908572), (40, 24454286), (41, 23857840), (80, 12227143), (82, 11928920), (164, 5964460), (205, 4771568), (328, 2982230), (410, 2385784), (656, 1491115), (820, 1192892), (1640, 596446), (3280, 298223)]