261837315

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:301

約数の個数: 96

約数和(自身を含む): 506967552

約数和(自身を除く): 245130237

約数列:

[1, 3, 5, 9, 15, 17, 31, 45, 51, 61, 85, 93, 153, 155, 181, 183, 255, 279, 305, 465, 527, 543, 549, 765, 905, 915, 1037, 1395, 1581, 1629, 1891, 2635, 2715, 2745, 3077, 3111, 4743, 5185, 5611, 5673, 7905, 8145, 9231, 9333, 9455, 11041, 15385, 15555, 16833, 17019, 23715, 27693, 28055, 28365, 32147, 33123, 46155, 46665, 50499, 55205, 84165, 85095, 95387, 96441, 99369, 138465, 160735, 165615, 187697, 252495, 286161, 289323, 342271, 476935, 482205, 496845, 563091, 858483, 938485, 1026813, 1430805, 1446615, 1689273, 1711355, 2815455, 3080439, 4292415, 5134065, 5818607, 8446365, 15402195, 17455821, 29093035, 52367463, 87279105, 261837315]

約数ペア:

[(1, 261837315), (3, 87279105), (5, 52367463), (9, 29093035), (15, 17455821), (17, 15402195), (31, 8446365), (45, 5818607), (51, 5134065), (61, 4292415), (85, 3080439), (93, 2815455), (153, 1711355), (155, 1689273), (181, 1446615), (183, 1430805), (255, 1026813), (279, 938485), (305, 858483), (465, 563091), (527, 496845), (543, 482205), (549, 476935), (765, 342271), (905, 289323), (915, 286161), (1037, 252495), (1395, 187697), (1581, 165615), (1629, 160735), (1891, 138465), (2635, 99369), (2715, 96441), (2745, 95387), (3077, 85095), (3111, 84165), (4743, 55205), (5185, 50499), (5611, 46665), (5673, 46155), (7905, 33123), (8145, 32147), (9231, 28365), (9333, 28055), (9455, 27693), (11041, 23715), (15385, 17019), (15555, 16833)]