15538540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 33802272

約数和(自身を除く): 18263732

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 107, 137, 212, 214, 265, 274, 428, 530, 535, 548, 685, 1060, 1070, 1370, 2140, 2740, 5671, 7261, 11342, 14522, 14659, 22684, 28355, 29044, 29318, 36305, 56710, 58636, 72610, 73295, 113420, 145220, 146590, 293180, 776927, 1553854, 3107708, 3884635, 7769270, 15538540]

約数ペア:

[(1, 15538540), (2, 7769270), (4, 3884635), (5, 3107708), (10, 1553854), (20, 776927), (53, 293180), (106, 146590), (107, 145220), (137, 113420), (212, 73295), (214, 72610), (265, 58636), (274, 56710), (428, 36305), (530, 29318), (535, 29044), (548, 28355), (685, 22684), (1060, 14659), (1070, 14522), (1370, 11342), (2140, 7261), (2740, 5671)]