18907850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1531}}^1$

素因数の和:1575

約数の個数: 48

約数和(自身を含む): 39893280

約数和(自身を除く): 20985430

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 130, 190, 247, 325, 475, 494, 650, 950, 1235, 1531, 2470, 3062, 6175, 7655, 12350, 15310, 19903, 29089, 38275, 39806, 58178, 76550, 99515, 145445, 199030, 290890, 378157, 497575, 727225, 756314, 995150, 1454450, 1890785, 3781570, 9453925, 18907850]

約数ペア:

[(1, 18907850), (2, 9453925), (5, 3781570), (10, 1890785), (13, 1454450), (19, 995150), (25, 756314), (26, 727225), (38, 497575), (50, 378157), (65, 290890), (95, 199030), (130, 145445), (190, 99515), (247, 76550), (325, 58178), (475, 39806), (494, 38275), (650, 29089), (950, 19903), (1235, 15310), (1531, 12350), (2470, 7655), (3062, 6175)]