203662720

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18719}}^1$

素因数の和:18755

約数の個数: 64

約数和(自身を含む): 515548800

約数和(自身を除く): 311886080

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 5440, 10880, 18719, 37438, 74876, 93595, 149752, 187190, 299504, 318223, 374380, 599008, 636446, 748760, 1198016, 1272892, 1497520, 1591115, 2396032, 2545784, 2995040, 3182230, 5091568, 5990080, 6364460, 10183136, 11980160, 12728920, 20366272, 25457840, 40732544, 50915680, 101831360, 203662720]

約数ペア:

[(1, 203662720), (2, 101831360), (4, 50915680), (5, 40732544), (8, 25457840), (10, 20366272), (16, 12728920), (17, 11980160), (20, 10183136), (32, 6364460), (34, 5990080), (40, 5091568), (64, 3182230), (68, 2995040), (80, 2545784), (85, 2396032), (128, 1591115), (136, 1497520), (160, 1272892), (170, 1198016), (272, 748760), (320, 636446), (340, 599008), (544, 374380), (640, 318223), (680, 299504), (1088, 187190), (1360, 149752), (2176, 93595), (2720, 74876), (5440, 37438), (10880, 18719)]