90821990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{10903}}^1$

素因数の和:10941

約数の個数: 48

約数和(自身を含む): 201375072

約数和(自身を除く): 110553082

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 238, 245, 490, 595, 833, 1190, 1666, 4165, 8330, 10903, 21806, 54515, 76321, 109030, 152642, 185351, 370702, 381605, 534247, 763210, 926755, 1068494, 1297457, 1853510, 2594914, 2671235, 5342470, 6487285, 9082199, 12974570, 18164398, 45410995, 90821990]

約数ペア:

[(1, 90821990), (2, 45410995), (5, 18164398), (7, 12974570), (10, 9082199), (14, 6487285), (17, 5342470), (34, 2671235), (35, 2594914), (49, 1853510), (70, 1297457), (85, 1068494), (98, 926755), (119, 763210), (170, 534247), (238, 381605), (245, 370702), (490, 185351), (595, 152642), (833, 109030), (1190, 76321), (1666, 54515), (4165, 21806), (8330, 10903)]