20091888040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{316109}}^1$

素因数の和:316354

約数の個数: 64

約数和(自身を含む): 51892617600

約数和(自身を除く): 31800729560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 227, 280, 454, 908, 1135, 1589, 1816, 2270, 3178, 4540, 6356, 7945, 9080, 12712, 15890, 31780, 63560, 316109, 632218, 1264436, 1580545, 2212763, 2528872, 3161090, 4425526, 6322180, 8851052, 11063815, 12644360, 17702104, 22127630, 44255260, 71756743, 88510520, 143513486, 287026972, 358783715, 502297201, 574053944, 717567430, 1004594402, 1435134860, 2009188804, 2511486005, 2870269720, 4018377608, 5022972010, 10045944020, 20091888040]

約数ペア:

[(1, 20091888040), (2, 10045944020), (4, 5022972010), (5, 4018377608), (7, 2870269720), (8, 2511486005), (10, 2009188804), (14, 1435134860), (20, 1004594402), (28, 717567430), (35, 574053944), (40, 502297201), (56, 358783715), (70, 287026972), (140, 143513486), (227, 88510520), (280, 71756743), (454, 44255260), (908, 22127630), (1135, 17702104), (1589, 12644360), (1816, 11063815), (2270, 8851052), (3178, 6322180), (4540, 4425526), (6356, 3161090), (7945, 2528872), (9080, 2212763), (12712, 1580545), (15890, 1264436), (31780, 632218), (63560, 316109)]