4492040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 11784960

約数和(自身を除く): 7292920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 263, 280, 305, 427, 488, 526, 610, 854, 1052, 1220, 1315, 1708, 1841, 2104, 2135, 2440, 2630, 3416, 3682, 4270, 5260, 7364, 8540, 9205, 10520, 14728, 16043, 17080, 18410, 32086, 36820, 64172, 73640, 80215, 112301, 128344, 160430, 224602, 320860, 449204, 561505, 641720, 898408, 1123010, 2246020, 4492040]

約数ペア:

[(1, 4492040), (2, 2246020), (4, 1123010), (5, 898408), (7, 641720), (8, 561505), (10, 449204), (14, 320860), (20, 224602), (28, 160430), (35, 128344), (40, 112301), (56, 80215), (61, 73640), (70, 64172), (122, 36820), (140, 32086), (244, 18410), (263, 17080), (280, 16043), (305, 14728), (427, 10520), (488, 9205), (526, 8540), (610, 7364), (854, 5260), (1052, 4270), (1220, 3682), (1315, 3416), (1708, 2630), (1841, 2440), (2104, 2135)]