15242980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 33974640

約数和(自身を除く): 18731660

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 164, 205, 290, 410, 580, 641, 820, 1189, 1282, 2378, 2564, 3205, 4756, 5945, 6410, 11890, 12820, 18589, 23780, 26281, 37178, 52562, 74356, 92945, 105124, 131405, 185890, 262810, 371780, 525620, 762149, 1524298, 3048596, 3810745, 7621490, 15242980]

約数ペア:

[(1, 15242980), (2, 7621490), (4, 3810745), (5, 3048596), (10, 1524298), (20, 762149), (29, 525620), (41, 371780), (58, 262810), (82, 185890), (116, 131405), (145, 105124), (164, 92945), (205, 74356), (290, 52562), (410, 37178), (580, 26281), (641, 23780), (820, 18589), (1189, 12820), (1282, 11890), (2378, 6410), (2564, 5945), (3205, 4756)]