1990340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 4656960

約数和(自身を除く): 2666620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 109, 110, 166, 218, 220, 332, 415, 436, 545, 830, 913, 1090, 1199, 1660, 1826, 2180, 2398, 3652, 4565, 4796, 5995, 9047, 9130, 11990, 18094, 18260, 23980, 36188, 45235, 90470, 99517, 180940, 199034, 398068, 497585, 995170, 1990340]

約数ペア:

[(1, 1990340), (2, 995170), (4, 497585), (5, 398068), (10, 199034), (11, 180940), (20, 99517), (22, 90470), (44, 45235), (55, 36188), (83, 23980), (109, 18260), (110, 18094), (166, 11990), (218, 9130), (220, 9047), (332, 5995), (415, 4796), (436, 4565), (545, 3652), (830, 2398), (913, 2180), (1090, 1826), (1199, 1660)]