169921100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:387

約数の個数: 72

約数和(自身を含む): 378517440

約数和(自身を除く): 208596340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 137, 157, 158, 274, 314, 316, 395, 548, 628, 685, 785, 790, 1370, 1570, 1580, 1975, 2740, 3140, 3425, 3925, 3950, 6850, 7850, 7900, 10823, 12403, 13700, 15700, 21509, 21646, 24806, 43018, 43292, 49612, 54115, 62015, 86036, 107545, 108230, 124030, 215090, 216460, 248060, 270575, 310075, 430180, 537725, 541150, 620150, 1075450, 1082300, 1240300, 1699211, 2150900, 3398422, 6796844, 8496055, 16992110, 33984220, 42480275, 84960550, 169921100]

約数ペア:

[(1, 169921100), (2, 84960550), (4, 42480275), (5, 33984220), (10, 16992110), (20, 8496055), (25, 6796844), (50, 3398422), (79, 2150900), (100, 1699211), (137, 1240300), (157, 1082300), (158, 1075450), (274, 620150), (314, 541150), (316, 537725), (395, 430180), (548, 310075), (628, 270575), (685, 248060), (785, 216460), (790, 215090), (1370, 124030), (1570, 108230), (1580, 107545), (1975, 86036), (2740, 62015), (3140, 54115), (3425, 49612), (3925, 43292), (3950, 43018), (6850, 24806), (7850, 21646), (7900, 21509), (10823, 15700), (12403, 13700)]