20972809210

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1\times {\mathrm{3163}}^1$

素因数の和:3547

約数の個数: 64

約数和(自身を含む): 39890092032

約数和(自身を除く): 18917282822

約数列:

[1, 2, 5, 10, 23, 46, 115, 127, 227, 230, 254, 454, 635, 1135, 1270, 2270, 2921, 3163, 5221, 5842, 6326, 10442, 14605, 15815, 26105, 28829, 29210, 31630, 52210, 57658, 72749, 144145, 145498, 288290, 363745, 401701, 663067, 718001, 727490, 803402, 1326134, 1436002, 2008505, 3315335, 3590005, 4017010, 6630670, 7180010, 9239123, 16514023, 18478246, 33028046, 46195615, 82570115, 91186127, 92391230, 165140230, 182372254, 455930635, 911861270, 2097280921, 4194561842, 10486404605, 20972809210]

約数ペア:

[(1, 20972809210), (2, 10486404605), (5, 4194561842), (10, 2097280921), (23, 911861270), (46, 455930635), (115, 182372254), (127, 165140230), (227, 92391230), (230, 91186127), (254, 82570115), (454, 46195615), (635, 33028046), (1135, 18478246), (1270, 16514023), (2270, 9239123), (2921, 7180010), (3163, 6630670), (5221, 4017010), (5842, 3590005), (6326, 3315335), (10442, 2008505), (14605, 1436002), (15815, 1326134), (26105, 803402), (28829, 727490), (29210, 718001), (31630, 663067), (52210, 401701), (57658, 363745), (72749, 288290), (144145, 145498)]