20082920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3511}}^1$

素因数の和:3546

約数の個数: 64

約数和(自身を含む): 53101440

約数和(自身を除く): 33018520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3511, 5720, 7022, 14044, 17555, 28088, 35110, 38621, 45643, 70220, 77242, 91286, 140440, 154484, 182572, 193105, 228215, 308968, 365144, 386210, 456430, 502073, 772420, 912860, 1004146, 1544840, 1825720, 2008292, 2510365, 4016584, 5020730, 10041460, 20082920]

約数ペア:

[(1, 20082920), (2, 10041460), (4, 5020730), (5, 4016584), (8, 2510365), (10, 2008292), (11, 1825720), (13, 1544840), (20, 1004146), (22, 912860), (26, 772420), (40, 502073), (44, 456430), (52, 386210), (55, 365144), (65, 308968), (88, 228215), (104, 193105), (110, 182572), (130, 154484), (143, 140440), (220, 91286), (260, 77242), (286, 70220), (440, 45643), (520, 38621), (572, 35110), (715, 28088), (1144, 17555), (1430, 14044), (2860, 7022), (3511, 5720)]