205280206580

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{881}}^1\times {\mathrm{14401}}^1$

素因数の和:16100

約数の個数: 48

約数和(自身を含む): 432141227280

約数和(自身を除く): 226861020700

約数列:

[1, 2, 4, 5, 10, 20, 809, 881, 1618, 1762, 3236, 3524, 4045, 4405, 8090, 8810, 14401, 16180, 17620, 28802, 57604, 72005, 144010, 288020, 712729, 1425458, 2850916, 3563645, 7127290, 11650409, 12687281, 14254580, 23300818, 25374562, 46601636, 50749124, 58252045, 63436405, 116504090, 126872810, 233008180, 253745620, 10264010329, 20528020658, 41056041316, 51320051645, 102640103290, 205280206580]

約数ペア:

[(1, 205280206580), (2, 102640103290), (4, 51320051645), (5, 41056041316), (10, 20528020658), (20, 10264010329), (809, 253745620), (881, 233008180), (1618, 126872810), (1762, 116504090), (3236, 63436405), (3524, 58252045), (4045, 50749124), (4405, 46601636), (8090, 25374562), (8810, 23300818), (14401, 14254580), (16180, 12687281), (17620, 11650409), (28802, 7127290), (57604, 3563645), (72005, 2850916), (144010, 1425458), (288020, 712729)]