278300620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{26107}}^1$

素因数の和:26170

約数の個数: 48

約数和(自身を含む): 644763168

約数和(自身を除く): 366462548

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2665, 5330, 10660, 26107, 52214, 104428, 130535, 261070, 339391, 522140, 678782, 1070387, 1357564, 1696955, 2140774, 3393910, 4281548, 5351935, 6787820, 10703870, 13915031, 21407740, 27830062, 55660124, 69575155, 139150310, 278300620]

約数ペア:

[(1, 278300620), (2, 139150310), (4, 69575155), (5, 55660124), (10, 27830062), (13, 21407740), (20, 13915031), (26, 10703870), (41, 6787820), (52, 5351935), (65, 4281548), (82, 3393910), (130, 2140774), (164, 1696955), (205, 1357564), (260, 1070387), (410, 678782), (533, 522140), (820, 339391), (1066, 261070), (2132, 130535), (2665, 104428), (5330, 52214), (10660, 26107)]