28771380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1321}}^1$

素因数の和:1358

約数の個数: 108

約数和(自身を含む): 96000996

約数和(自身を除く): 67229616

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 121, 132, 165, 180, 198, 220, 242, 330, 363, 396, 484, 495, 605, 660, 726, 990, 1089, 1210, 1321, 1452, 1815, 1980, 2178, 2420, 2642, 3630, 3963, 4356, 5284, 5445, 6605, 7260, 7926, 10890, 11889, 13210, 14531, 15852, 19815, 21780, 23778, 26420, 29062, 39630, 43593, 47556, 58124, 59445, 72655, 79260, 87186, 118890, 130779, 145310, 159841, 174372, 217965, 237780, 261558, 290620, 319682, 435930, 479523, 523116, 639364, 653895, 799205, 871860, 959046, 1307790, 1438569, 1598410, 1918092, 2397615, 2615580, 2877138, 3196820, 4795230, 5754276, 7192845, 9590460, 14385690, 28771380]

約数ペア:

[(1, 28771380), (2, 14385690), (3, 9590460), (4, 7192845), (5, 5754276), (6, 4795230), (9, 3196820), (10, 2877138), (11, 2615580), (12, 2397615), (15, 1918092), (18, 1598410), (20, 1438569), (22, 1307790), (30, 959046), (33, 871860), (36, 799205), (44, 653895), (45, 639364), (55, 523116), (60, 479523), (66, 435930), (90, 319682), (99, 290620), (110, 261558), (121, 237780), (132, 217965), (165, 174372), (180, 159841), (198, 145310), (220, 130779), (242, 118890), (330, 87186), (363, 79260), (396, 72655), (484, 59445), (495, 58124), (605, 47556), (660, 43593), (726, 39630), (990, 29062), (1089, 26420), (1210, 23778), (1321, 21780), (1452, 19815), (1815, 15852), (1980, 14531), (2178, 13210), (2420, 11889), (2642, 10890), (3630, 7926), (3963, 7260), (4356, 6605), (5284, 5445)]