1900984880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1397783}}^1$

素因数の和:1397813

約数の個数: 40

約数和(自身を含む): 4679780832

約数和(自身を除く): 2778795952

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 1397783, 2795566, 5591132, 6988915, 11182264, 13977830, 22364528, 23762311, 27955660, 47524622, 55911320, 95049244, 111822640, 118811555, 190098488, 237623110, 380196976, 475246220, 950492440, 1900984880]

約数ペア:

[(1, 1900984880), (2, 950492440), (4, 475246220), (5, 380196976), (8, 237623110), (10, 190098488), (16, 118811555), (17, 111822640), (20, 95049244), (34, 55911320), (40, 47524622), (68, 27955660), (80, 23762311), (85, 22364528), (136, 13977830), (170, 11182264), (272, 6988915), (340, 5591132), (680, 2795566), (1360, 1397783)]