20287740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{521}}^1$

素因数の和:603

約数の個数: 96

約数和(自身を含む): 63141120

約数和(自身を除く): 42853380

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 59, 60, 66, 110, 118, 132, 165, 177, 220, 236, 295, 330, 354, 521, 590, 649, 660, 708, 885, 1042, 1180, 1298, 1563, 1770, 1947, 2084, 2596, 2605, 3126, 3245, 3540, 3894, 5210, 5731, 6252, 6490, 7788, 7815, 9735, 10420, 11462, 12980, 15630, 17193, 19470, 22924, 28655, 30739, 31260, 34386, 38940, 57310, 61478, 68772, 85965, 92217, 114620, 122956, 153695, 171930, 184434, 307390, 338129, 343860, 368868, 461085, 614780, 676258, 922170, 1014387, 1352516, 1690645, 1844340, 2028774, 3381290, 4057548, 5071935, 6762580, 10143870, 20287740]

約数ペア:

[(1, 20287740), (2, 10143870), (3, 6762580), (4, 5071935), (5, 4057548), (6, 3381290), (10, 2028774), (11, 1844340), (12, 1690645), (15, 1352516), (20, 1014387), (22, 922170), (30, 676258), (33, 614780), (44, 461085), (55, 368868), (59, 343860), (60, 338129), (66, 307390), (110, 184434), (118, 171930), (132, 153695), (165, 122956), (177, 114620), (220, 92217), (236, 85965), (295, 68772), (330, 61478), (354, 57310), (521, 38940), (590, 34386), (649, 31260), (660, 30739), (708, 28655), (885, 22924), (1042, 19470), (1180, 17193), (1298, 15630), (1563, 12980), (1770, 11462), (1947, 10420), (2084, 9735), (2596, 7815), (2605, 7788), (3126, 6490), (3245, 6252), (3540, 5731), (3894, 5210)]