20208.000000

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1$

素因数の和:217

約数の個数: 48

約数和(自身を含む): 1769040

約数和(自身を除く): 1056978

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 179, 221, 234, 306, 358, 442, 537, 663, 1074, 1326, 1611, 1989, 2327, 3043, 3222, 3978, 4654, 6086, 6981, 9129, 13962, 18258, 20943, 27387, 39559, 41886, 54774, 79118, 118677, 237354, 356031, 712062]

約数ペア:

[(1, 712062), (2, 356031), (3, 237354), (6, 118677), (9, 79118), (13, 54774), (17, 41886), (18, 39559), (26, 27387), (34, 20943), (39, 18258), (51, 13962), (78, 9129), (102, 6981), (117, 6086), (153, 4654), (179, 3978), (221, 3222), (234, 3043), (306, 2327), (358, 1989), (442, 1611), (537, 1326), (663, 1074)]