278045300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{213881}}^1$

素因数の和:213908

約数の個数: 36

約数和(自身を含む): 649773516

約数和(自身を除く): 371728216

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 213881, 427762, 855524, 1069405, 2138810, 2780453, 4277620, 5347025, 5560906, 10694050, 11121812, 13902265, 21388100, 27804530, 55609060, 69511325, 139022650, 278045300]

約数ペア:

[(1, 278045300), (2, 139022650), (4, 69511325), (5, 55609060), (10, 27804530), (13, 21388100), (20, 13902265), (25, 11121812), (26, 10694050), (50, 5560906), (52, 5347025), (65, 4277620), (100, 2780453), (130, 2138810), (260, 1069405), (325, 855524), (650, 427762), (1300, 213881)]