2188240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1609}}^1$

素因数の和:1639

約数の個数: 40

約数和(自身を含む): 5390280

約数和(自身を除く): 3202040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 1609, 3218, 6436, 8045, 12872, 16090, 25744, 27353, 32180, 54706, 64360, 109412, 128720, 136765, 218824, 273530, 437648, 547060, 1094120, 2188240]

約数ペア:

[(1, 2188240), (2, 1094120), (4, 547060), (5, 437648), (8, 273530), (10, 218824), (16, 136765), (17, 128720), (20, 109412), (34, 64360), (40, 54706), (68, 32180), (80, 27353), (85, 25744), (136, 16090), (170, 12872), (272, 8045), (340, 6436), (680, 3218), (1360, 1609)]