21110720

素因数分解:

$2^6\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1783}}^1$

素因数の和:1837

約数の個数: 56

約数和(自身を含む): 51657504

約数和(自身を除く): 30546784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 148, 160, 185, 296, 320, 370, 592, 740, 1184, 1480, 1783, 2368, 2960, 3566, 5920, 7132, 8915, 11840, 14264, 17830, 28528, 35660, 57056, 65971, 71320, 114112, 131942, 142640, 263884, 285280, 329855, 527768, 570560, 659710, 1055536, 1319420, 2111072, 2638840, 4222144, 5277680, 10555360, 21110720]

約数ペア:

[(1, 21110720), (2, 10555360), (4, 5277680), (5, 4222144), (8, 2638840), (10, 2111072), (16, 1319420), (20, 1055536), (32, 659710), (37, 570560), (40, 527768), (64, 329855), (74, 285280), (80, 263884), (148, 142640), (160, 131942), (185, 114112), (296, 71320), (320, 65971), (370, 57056), (592, 35660), (740, 28528), (1184, 17830), (1480, 14264), (1783, 11840), (2368, 8915), (2960, 7132), (3566, 5920)]