20504220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{661}}^1$

素因数の和:731

約数の個数: 96

約数和(自身を含む): 64060416

約数和(自身を除く): 43556196

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 47, 55, 60, 66, 94, 110, 132, 141, 165, 188, 220, 235, 282, 330, 470, 517, 564, 660, 661, 705, 940, 1034, 1322, 1410, 1551, 1983, 2068, 2585, 2644, 2820, 3102, 3305, 3966, 5170, 6204, 6610, 7271, 7755, 7932, 9915, 10340, 13220, 14542, 15510, 19830, 21813, 29084, 31020, 31067, 36355, 39660, 43626, 62134, 72710, 87252, 93201, 109065, 124268, 145420, 155335, 186402, 218130, 310670, 341737, 372804, 436260, 466005, 621340, 683474, 932010, 1025211, 1366948, 1708685, 1864020, 2050422, 3417370, 4100844, 5126055, 6834740, 10252110, 20504220]

約数ペア:

[(1, 20504220), (2, 10252110), (3, 6834740), (4, 5126055), (5, 4100844), (6, 3417370), (10, 2050422), (11, 1864020), (12, 1708685), (15, 1366948), (20, 1025211), (22, 932010), (30, 683474), (33, 621340), (44, 466005), (47, 436260), (55, 372804), (60, 341737), (66, 310670), (94, 218130), (110, 186402), (132, 155335), (141, 145420), (165, 124268), (188, 109065), (220, 93201), (235, 87252), (282, 72710), (330, 62134), (470, 43626), (517, 39660), (564, 36355), (660, 31067), (661, 31020), (705, 29084), (940, 21813), (1034, 19830), (1322, 15510), (1410, 14542), (1551, 13220), (1983, 10340), (2068, 9915), (2585, 7932), (2644, 7755), (2820, 7271), (3102, 6610), (3305, 6204), (3966, 5170)]