171972020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{13249}}^1$

素因数の和:13328

約数の個数: 48

約数和(自身を含む): 400680000

約数和(自身を除く): 228707980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 2596, 3245, 6490, 12980, 13249, 26498, 52996, 66245, 132490, 145739, 264980, 291478, 582956, 728695, 781691, 1457390, 1563382, 2914780, 3126764, 3908455, 7816910, 8598601, 15633820, 17197202, 34394404, 42993005, 85986010, 171972020]

約数ペア:

[(1, 171972020), (2, 85986010), (4, 42993005), (5, 34394404), (10, 17197202), (11, 15633820), (20, 8598601), (22, 7816910), (44, 3908455), (55, 3126764), (59, 2914780), (110, 1563382), (118, 1457390), (220, 781691), (236, 728695), (295, 582956), (590, 291478), (649, 264980), (1180, 145739), (1298, 132490), (2596, 66245), (3245, 52996), (6490, 26498), (12980, 13249)]