8729720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5323}}^1$

素因数の和:5375

約数の個数: 32

約数和(自身を含む): 20124720

約数和(自身を除く): 11395000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 5323, 10646, 21292, 26615, 42584, 53230, 106460, 212920, 218243, 436486, 872972, 1091215, 1745944, 2182430, 4364860, 8729720]

約数ペア:

[(1, 8729720), (2, 4364860), (4, 2182430), (5, 1745944), (8, 1091215), (10, 872972), (20, 436486), (40, 218243), (41, 212920), (82, 106460), (164, 53230), (205, 42584), (328, 26615), (410, 21292), (820, 10646), (1640, 5323)]