20743520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18521}}^1$

素因数の和:18543

約数の個数: 48

約数和(自身を含む): 56010528

約数和(自身を除く): 35267008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18521, 37042, 74084, 92605, 129647, 148168, 185210, 259294, 296336, 370420, 518588, 592672, 648235, 740840, 1037176, 1296470, 1481680, 2074352, 2592940, 2963360, 4148704, 5185880, 10371760, 20743520]

約数ペア:

[(1, 20743520), (2, 10371760), (4, 5185880), (5, 4148704), (7, 2963360), (8, 2592940), (10, 2074352), (14, 1481680), (16, 1296470), (20, 1037176), (28, 740840), (32, 648235), (35, 592672), (40, 518588), (56, 370420), (70, 296336), (80, 259294), (112, 185210), (140, 148168), (160, 129647), (224, 92605), (280, 74084), (560, 37042), (1120, 18521)]