201712720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4877}}^1$

素因数の和:4948

約数の個数: 80

約数和(自身を含む): 522609408

約数和(自身を除く): 320896688

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 440, 470, 517, 752, 880, 940, 1034, 1880, 2068, 2585, 3760, 4136, 4877, 5170, 8272, 9754, 10340, 19508, 20680, 24385, 39016, 41360, 48770, 53647, 78032, 97540, 107294, 195080, 214588, 229219, 268235, 390160, 429176, 458438, 536470, 858352, 916876, 1072940, 1146095, 1833752, 2145880, 2292190, 2521409, 3667504, 4291760, 4584380, 5042818, 9168760, 10085636, 12607045, 18337520, 20171272, 25214090, 40342544, 50428180, 100856360, 201712720]

約数ペア:

[(1, 201712720), (2, 100856360), (4, 50428180), (5, 40342544), (8, 25214090), (10, 20171272), (11, 18337520), (16, 12607045), (20, 10085636), (22, 9168760), (40, 5042818), (44, 4584380), (47, 4291760), (55, 3667504), (80, 2521409), (88, 2292190), (94, 2145880), (110, 1833752), (176, 1146095), (188, 1072940), (220, 916876), (235, 858352), (376, 536470), (440, 458438), (470, 429176), (517, 390160), (752, 268235), (880, 229219), (940, 214588), (1034, 195080), (1880, 107294), (2068, 97540), (2585, 78032), (3760, 53647), (4136, 48770), (4877, 41360), (5170, 39016), (8272, 24385), (9754, 20680), (10340, 19508)]