200918920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{15551}}^1$

素因数の和:15598

約数の個数: 64

約数和(自身を含む): 503884800

約数和(自身を除く): 302965880

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1615, 2584, 3230, 6460, 12920, 15551, 31102, 62204, 77755, 124408, 155510, 264367, 295469, 311020, 528734, 590938, 622040, 1057468, 1181876, 1321835, 1477345, 2114936, 2363752, 2643670, 2954690, 5022973, 5287340, 5909380, 10045946, 10574680, 11818760, 20091892, 25114865, 40183784, 50229730, 100459460, 200918920]

約数ペア:

[(1, 200918920), (2, 100459460), (4, 50229730), (5, 40183784), (8, 25114865), (10, 20091892), (17, 11818760), (19, 10574680), (20, 10045946), (34, 5909380), (38, 5287340), (40, 5022973), (68, 2954690), (76, 2643670), (85, 2363752), (95, 2114936), (136, 1477345), (152, 1321835), (170, 1181876), (190, 1057468), (323, 622040), (340, 590938), (380, 528734), (646, 311020), (680, 295469), (760, 264367), (1292, 155510), (1615, 124408), (2584, 77755), (3230, 62204), (6460, 31102), (12920, 15551)]