56784280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1459}}^1$

素因数の和:1616

約数の個数: 64

約数和(自身を含む): 147168000

約数和(自身を除く): 90383720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1459, 1946, 2780, 2918, 3892, 4865, 5560, 5836, 7295, 7784, 9730, 10213, 11672, 14590, 19460, 20426, 29180, 38920, 40852, 51065, 58360, 81704, 102130, 202801, 204260, 405602, 408520, 811204, 1014005, 1419607, 1622408, 2028010, 2839214, 4056020, 5678428, 7098035, 8112040, 11356856, 14196070, 28392140, 56784280]

約数ペア:

[(1, 56784280), (2, 28392140), (4, 14196070), (5, 11356856), (7, 8112040), (8, 7098035), (10, 5678428), (14, 4056020), (20, 2839214), (28, 2028010), (35, 1622408), (40, 1419607), (56, 1014005), (70, 811204), (139, 408520), (140, 405602), (278, 204260), (280, 202801), (556, 102130), (695, 81704), (973, 58360), (1112, 51065), (1390, 40852), (1459, 38920), (1946, 29180), (2780, 20426), (2918, 19460), (3892, 14590), (4865, 11672), (5560, 10213), (5836, 9730), (7295, 7784)]