20100565808

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{661}}^1\times {\mathrm{111799}}^1$

素因数の和:112485

約数の個数: 40

約数和(自身を含む): 41298472800

約数和(自身を除く): 21197906992

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 661, 1322, 2644, 5288, 10576, 11237, 22474, 44948, 89896, 111799, 179792, 223598, 447196, 894392, 1788784, 1900583, 3801166, 7602332, 15204664, 30409328, 73899139, 147798278, 295596556, 591193112, 1182386224, 1256285363, 2512570726, 5025141452, 10050282904, 20100565808]

約数ペア:

[(1, 20100565808), (2, 10050282904), (4, 5025141452), (8, 2512570726), (16, 1256285363), (17, 1182386224), (34, 591193112), (68, 295596556), (136, 147798278), (272, 73899139), (661, 30409328), (1322, 15204664), (2644, 7602332), (5288, 3801166), (10576, 1900583), (11237, 1788784), (22474, 894392), (44948, 447196), (89896, 223598), (111799, 179792)]