200289980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{1721}}^1$

素因数の和:1787

約数の個数: 72

約数和(自身を含む): 479942064

約数和(自身を除く): 279652084

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 529, 1012, 1058, 1265, 1721, 2116, 2530, 2645, 3442, 5060, 5290, 5819, 6884, 8605, 10580, 11638, 17210, 18931, 23276, 29095, 34420, 37862, 39583, 58190, 75724, 79166, 94655, 116380, 158332, 189310, 197915, 378620, 395830, 435413, 791660, 870826, 910409, 1741652, 1820818, 2177065, 3641636, 4354130, 4552045, 8708260, 9104090, 10014499, 18208180, 20028998, 40057996, 50072495, 100144990, 200289980]

約数ペア:

[(1, 200289980), (2, 100144990), (4, 50072495), (5, 40057996), (10, 20028998), (11, 18208180), (20, 10014499), (22, 9104090), (23, 8708260), (44, 4552045), (46, 4354130), (55, 3641636), (92, 2177065), (110, 1820818), (115, 1741652), (220, 910409), (230, 870826), (253, 791660), (460, 435413), (506, 395830), (529, 378620), (1012, 197915), (1058, 189310), (1265, 158332), (1721, 116380), (2116, 94655), (2530, 79166), (2645, 75724), (3442, 58190), (5060, 39583), (5290, 37862), (5819, 34420), (6884, 29095), (8605, 23276), (10580, 18931), (11638, 17210)]