388122880

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{15959}}^1$

素因数の和:15999

約数の個数: 72

約数和(自身を含む): 978667200

約数和(自身を除く): 590544320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 3040, 4864, 6080, 12160, 15959, 24320, 31918, 63836, 79795, 127672, 159590, 255344, 303221, 319180, 510688, 606442, 638360, 1021376, 1212884, 1276720, 1516105, 2042752, 2425768, 2553440, 3032210, 4085504, 4851536, 5106880, 6064420, 9703072, 10213760, 12128840, 19406144, 20427520, 24257680, 38812288, 48515360, 77624576, 97030720, 194061440, 388122880]

約数ペア:

[(1, 388122880), (2, 194061440), (4, 97030720), (5, 77624576), (8, 48515360), (10, 38812288), (16, 24257680), (19, 20427520), (20, 19406144), (32, 12128840), (38, 10213760), (40, 9703072), (64, 6064420), (76, 5106880), (80, 4851536), (95, 4085504), (128, 3032210), (152, 2553440), (160, 2425768), (190, 2042752), (256, 1516105), (304, 1276720), (320, 1212884), (380, 1021376), (608, 638360), (640, 606442), (760, 510688), (1216, 319180), (1280, 303221), (1520, 255344), (2432, 159590), (3040, 127672), (4864, 79795), (6080, 63836), (12160, 31918), (15959, 24320)]