398574100

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{619}}^1$

素因数の和:817

約数の個数: 72

約数和(自身を含む): 891192960

約数和(自身を除く): 492618860

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 137, 188, 235, 274, 470, 548, 619, 685, 940, 1175, 1238, 1370, 2350, 2476, 2740, 3095, 3425, 4700, 6190, 6439, 6850, 12380, 12878, 13700, 15475, 25756, 29093, 30950, 32195, 58186, 61900, 64390, 84803, 116372, 128780, 145465, 160975, 169606, 290930, 321950, 339212, 424015, 581860, 643900, 727325, 848030, 1454650, 1696060, 2120075, 2909300, 3985741, 4240150, 7971482, 8480300, 15942964, 19928705, 39857410, 79714820, 99643525, 199287050, 398574100]

約数ペア:

[(1, 398574100), (2, 199287050), (4, 99643525), (5, 79714820), (10, 39857410), (20, 19928705), (25, 15942964), (47, 8480300), (50, 7971482), (94, 4240150), (100, 3985741), (137, 2909300), (188, 2120075), (235, 1696060), (274, 1454650), (470, 848030), (548, 727325), (619, 643900), (685, 581860), (940, 424015), (1175, 339212), (1238, 321950), (1370, 290930), (2350, 169606), (2476, 160975), (2740, 145465), (3095, 128780), (3425, 116372), (4700, 84803), (6190, 64390), (6439, 61900), (6850, 58186), (12380, 32195), (12878, 30950), (13700, 29093), (15475, 25756)]