20666647530

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1\times {\mathrm{2693}}^1$

素因数の和:3413

約数の個数: 128

約数和(自身を含む): 56498999040

約数和(自身を除く): 35832351510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 54, 86, 90, 129, 135, 215, 258, 270, 387, 430, 645, 661, 774, 1161, 1290, 1322, 1935, 1983, 2322, 2693, 3305, 3870, 3966, 5386, 5805, 5949, 6610, 8079, 9915, 11610, 11898, 13465, 16158, 17847, 19830, 24237, 26930, 28423, 29745, 35694, 40395, 48474, 56846, 59490, 72711, 80790, 85269, 89235, 115799, 121185, 142115, 145422, 170538, 178470, 231598, 242370, 255807, 284230, 347397, 363555, 426345, 511614, 578995, 694794, 727110, 767421, 852690, 1042191, 1157990, 1279035, 1534842, 1736985, 1780073, 2084382, 2558070, 3126573, 3473970, 3560146, 3837105, 5210955, 5340219, 6253146, 7674210, 8900365, 10421910, 10680438, 15632865, 16020657, 17800730, 26701095, 31265730, 32041314, 48061971, 53402190, 76543139, 80103285, 96123942, 153086278, 160206570, 229629417, 240309855, 382715695, 459258834, 480619710, 688888251, 765431390, 1148147085, 1377776502, 2066664753, 2296294170, 3444441255, 4133329506, 6888882510, 10333323765, 20666647530]

約数ペア:

[(1, 20666647530), (2, 10333323765), (3, 6888882510), (5, 4133329506), (6, 3444441255), (9, 2296294170), (10, 2066664753), (15, 1377776502), (18, 1148147085), (27, 765431390), (30, 688888251), (43, 480619710), (45, 459258834), (54, 382715695), (86, 240309855), (90, 229629417), (129, 160206570), (135, 153086278), (215, 96123942), (258, 80103285), (270, 76543139), (387, 53402190), (430, 48061971), (645, 32041314), (661, 31265730), (774, 26701095), (1161, 17800730), (1290, 16020657), (1322, 15632865), (1935, 10680438), (1983, 10421910), (2322, 8900365), (2693, 7674210), (3305, 6253146), (3870, 5340219), (3966, 5210955), (5386, 3837105), (5805, 3560146), (5949, 3473970), (6610, 3126573), (8079, 2558070), (9915, 2084382), (11610, 1780073), (11898, 1736985), (13465, 1534842), (16158, 1279035), (17847, 1157990), (19830, 1042191), (24237, 852690), (26930, 767421), (28423, 727110), (29745, 694794), (35694, 578995), (40395, 511614), (48474, 426345), (56846, 363555), (59490, 347397), (72711, 284230), (80790, 255807), (85269, 242370), (89235, 231598), (115799, 178470), (121185, 170538), (142115, 145422)]