199239920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{226409}}^1$

素因数の和:226433

約数の個数: 40

約数和(自身を含む): 505347120

約数和(自身を除く): 306107200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 226409, 452818, 905636, 1132045, 1811272, 2264090, 2490499, 3622544, 4528180, 4980998, 9056360, 9961996, 12452495, 18112720, 19923992, 24904990, 39847984, 49809980, 99619960, 199239920]

約数ペア:

[(1, 199239920), (2, 99619960), (4, 49809980), (5, 39847984), (8, 24904990), (10, 19923992), (11, 18112720), (16, 12452495), (20, 9961996), (22, 9056360), (40, 4980998), (44, 4528180), (55, 3622544), (80, 2490499), (88, 2264090), (110, 1811272), (176, 1132045), (220, 905636), (440, 452818), (880, 226409)]