206821175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1721}}^1$

素因数の和:1784

約数の個数: 48

約数和(自身を含む): 307480320

約数和(自身を除く): 100659145

約数列:

[1, 5, 11, 19, 23, 25, 55, 95, 115, 209, 253, 275, 437, 475, 575, 1045, 1265, 1721, 2185, 4807, 5225, 6325, 8605, 10925, 18931, 24035, 32699, 39583, 43025, 94655, 120175, 163495, 197915, 359689, 435413, 473275, 752077, 817475, 989575, 1798445, 2177065, 3760385, 8272847, 8992225, 10885325, 18801925, 41364235, 206821175]

約数ペア:

[(1, 206821175), (5, 41364235), (11, 18801925), (19, 10885325), (23, 8992225), (25, 8272847), (55, 3760385), (95, 2177065), (115, 1798445), (209, 989575), (253, 817475), (275, 752077), (437, 473275), (475, 435413), (575, 359689), (1045, 197915), (1265, 163495), (1721, 120175), (2185, 94655), (4807, 43025), (5225, 39583), (6325, 32699), (8605, 24035), (10925, 18931)]