74165720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{1103}}^1$

素因数の和:1196

約数の個数: 48

約数和(自身を含む): 171197280

約数和(自身を除く): 97031560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1103, 1640, 1681, 2206, 3362, 4412, 5515, 6724, 8405, 8824, 11030, 13448, 16810, 22060, 33620, 44120, 45223, 67240, 90446, 180892, 226115, 361784, 452230, 904460, 1808920, 1854143, 3708286, 7416572, 9270715, 14833144, 18541430, 37082860, 74165720]

約数ペア:

[(1, 74165720), (2, 37082860), (4, 18541430), (5, 14833144), (8, 9270715), (10, 7416572), (20, 3708286), (40, 1854143), (41, 1808920), (82, 904460), (164, 452230), (205, 361784), (328, 226115), (410, 180892), (820, 90446), (1103, 67240), (1640, 45223), (1681, 44120), (2206, 33620), (3362, 22060), (4412, 16810), (5515, 13448), (6724, 11030), (8405, 8824)]