21472160

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2003}}^1$

素因数の和:2085

約数の個数: 48

約数和(自身を含む): 51510816

約数和(自身を除く): 30038656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 2003, 2144, 2680, 4006, 5360, 8012, 10015, 10720, 16024, 20030, 32048, 40060, 64096, 80120, 134201, 160240, 268402, 320480, 536804, 671005, 1073608, 1342010, 2147216, 2684020, 4294432, 5368040, 10736080, 21472160]

約数ペア:

[(1, 21472160), (2, 10736080), (4, 5368040), (5, 4294432), (8, 2684020), (10, 2147216), (16, 1342010), (20, 1073608), (32, 671005), (40, 536804), (67, 320480), (80, 268402), (134, 160240), (160, 134201), (268, 80120), (335, 64096), (536, 40060), (670, 32048), (1072, 20030), (1340, 16024), (2003, 10720), (2144, 10015), (2680, 8012), (4006, 5360)]