201331720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{757}}^1$

素因数の和:938

約数の個数: 64

約数和(自身を含む): 465260400

約数和(自身を除く): 263928680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 109, 122, 218, 244, 305, 436, 488, 545, 610, 757, 872, 1090, 1220, 1514, 2180, 2440, 3028, 3785, 4360, 6056, 6649, 7570, 13298, 15140, 26596, 30280, 33245, 46177, 53192, 66490, 82513, 92354, 132980, 165026, 184708, 230885, 265960, 330052, 369416, 412565, 461770, 660104, 825130, 923540, 1650260, 1847080, 3300520, 5033293, 10066586, 20133172, 25166465, 40266344, 50332930, 100665860, 201331720]

約数ペア:

[(1, 201331720), (2, 100665860), (4, 50332930), (5, 40266344), (8, 25166465), (10, 20133172), (20, 10066586), (40, 5033293), (61, 3300520), (109, 1847080), (122, 1650260), (218, 923540), (244, 825130), (305, 660104), (436, 461770), (488, 412565), (545, 369416), (610, 330052), (757, 265960), (872, 230885), (1090, 184708), (1220, 165026), (1514, 132980), (2180, 92354), (2440, 82513), (3028, 66490), (3785, 53192), (4360, 46177), (6056, 33245), (6649, 30280), (7570, 26596), (13298, 15140)]