205122880

素因数分解:

$2^6\times 5^1\times {\mathrm{83}}^1\times {\mathrm{7723}}^1$

素因数の和:7823

約数の個数: 56

約数和(自身を含む): 494397792

約数和(自身を除く): 289274912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 160, 166, 320, 332, 415, 664, 830, 1328, 1660, 2656, 3320, 5312, 6640, 7723, 13280, 15446, 26560, 30892, 38615, 61784, 77230, 123568, 154460, 247136, 308920, 494272, 617840, 641009, 1235680, 1282018, 2471360, 2564036, 3205045, 5128072, 6410090, 10256144, 12820180, 20512288, 25640360, 41024576, 51280720, 102561440, 205122880]

約数ペア:

[(1, 205122880), (2, 102561440), (4, 51280720), (5, 41024576), (8, 25640360), (10, 20512288), (16, 12820180), (20, 10256144), (32, 6410090), (40, 5128072), (64, 3205045), (80, 2564036), (83, 2471360), (160, 1282018), (166, 1235680), (320, 641009), (332, 617840), (415, 494272), (664, 308920), (830, 247136), (1328, 154460), (1660, 123568), (2656, 77230), (3320, 61784), (5312, 38615), (6640, 30892), (7723, 26560), (13280, 15446)]