18213650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4003}}^1$

素因数の和:4035

約数の個数: 48

約数和(自身を含む): 41705664

約数和(自身を除く): 23492014

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4003, 4550, 8006, 20015, 28021, 40030, 52039, 56042, 100075, 104078, 140105, 200150, 260195, 280210, 364273, 520390, 700525, 728546, 1300975, 1401050, 1821365, 2601950, 3642730, 9106825, 18213650]

約数ペア:

[(1, 18213650), (2, 9106825), (5, 3642730), (7, 2601950), (10, 1821365), (13, 1401050), (14, 1300975), (25, 728546), (26, 700525), (35, 520390), (50, 364273), (65, 280210), (70, 260195), (91, 200150), (130, 140105), (175, 104078), (182, 100075), (325, 56042), (350, 52039), (455, 40030), (650, 28021), (910, 20015), (2275, 8006), (4003, 4550)]