20780358

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{4969}}^1$

素因数の和:5032

約数の個数: 32

約数和(自身を含む): 45087840

約数和(自身を除く): 24307482

約数列:

[1, 2, 3, 6, 17, 34, 41, 51, 82, 102, 123, 246, 697, 1394, 2091, 4182, 4969, 9938, 14907, 29814, 84473, 168946, 203729, 253419, 407458, 506838, 611187, 1222374, 3463393, 6926786, 10390179, 20780358]

約数ペア:

[(1, 20780358), (2, 10390179), (3, 6926786), (6, 3463393), (17, 1222374), (34, 611187), (41, 506838), (51, 407458), (82, 253419), (102, 203729), (123, 168946), (246, 84473), (697, 29814), (1394, 14907), (2091, 9938), (4182, 4969)]