4542580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 11079936

約数和(自身を除く): 6537356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 457, 497, 710, 914, 994, 1420, 1828, 1988, 2285, 2485, 3199, 4570, 4970, 6398, 9140, 9940, 12796, 15995, 31990, 32447, 63980, 64894, 129788, 162235, 227129, 324470, 454258, 648940, 908516, 1135645, 2271290, 4542580]

約数ペア:

[(1, 4542580), (2, 2271290), (4, 1135645), (5, 908516), (7, 648940), (10, 454258), (14, 324470), (20, 227129), (28, 162235), (35, 129788), (70, 64894), (71, 63980), (140, 32447), (142, 31990), (284, 15995), (355, 12796), (457, 9940), (497, 9140), (710, 6398), (914, 4970), (994, 4570), (1420, 3199), (1828, 2485), (1988, 2285)]