208461255

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 355847904

約数和(自身を除く): 147386649

約数列:

[1, 3, 5, 15, 19, 57, 95, 137, 281, 285, 361, 411, 685, 843, 1083, 1405, 1805, 2055, 2603, 4215, 5339, 5415, 7809, 13015, 16017, 26695, 38497, 39045, 49457, 80085, 101441, 115491, 148371, 192485, 247285, 304323, 507205, 577455, 731443, 741855, 1521615, 2194329, 3657215, 10971645, 13897417, 41692251, 69487085, 208461255]

約数ペア:

[(1, 208461255), (3, 69487085), (5, 41692251), (15, 13897417), (19, 10971645), (57, 3657215), (95, 2194329), (137, 1521615), (281, 741855), (285, 731443), (361, 577455), (411, 507205), (685, 304323), (843, 247285), (1083, 192485), (1405, 148371), (1805, 115491), (2055, 101441), (2603, 80085), (4215, 49457), (5339, 39045), (5415, 38497), (7809, 26695), (13015, 16017)]