20106140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 44573760

約数和(自身を除く): 24467620

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 109, 115, 218, 230, 401, 436, 460, 545, 802, 1090, 1604, 2005, 2180, 2507, 4010, 5014, 8020, 9223, 10028, 12535, 18446, 25070, 36892, 43709, 46115, 50140, 87418, 92230, 174836, 184460, 218545, 437090, 874180, 1005307, 2010614, 4021228, 5026535, 10053070, 20106140]

約数ペア:

[(1, 20106140), (2, 10053070), (4, 5026535), (5, 4021228), (10, 2010614), (20, 1005307), (23, 874180), (46, 437090), (92, 218545), (109, 184460), (115, 174836), (218, 92230), (230, 87418), (401, 50140), (436, 46115), (460, 43709), (545, 36892), (802, 25070), (1090, 18446), (1604, 12535), (2005, 10028), (2180, 9223), (2507, 8020), (4010, 5014)]