51996780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{26261}}^1$

素因数の和:26287

約数の個数: 72

約数和(自身を含む): 172068624

約数和(自身を除く): 120071844

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, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 26261, 52522, 78783, 105044, 131305, 157566, 236349, 262610, 288871, 315132, 393915, 472698, 525220, 577742, 787830, 866613, 945396, 1155484, 1181745, 1444355, 1575660, 1733226, 2363490, 2599839, 2888710, 3466452, 4333065, 4726980, 5199678, 5777420, 8666130, 10399356, 12999195, 17332260, 25998390, 51996780]

約数ペア:

[(1, 51996780), (2, 25998390), (3, 17332260), (4, 12999195), (5, 10399356), (6, 8666130), (9, 5777420), (10, 5199678), (11, 4726980), (12, 4333065), (15, 3466452), (18, 2888710), (20, 2599839), (22, 2363490), (30, 1733226), (33, 1575660), (36, 1444355), (44, 1181745), (45, 1155484), (55, 945396), (60, 866613), (66, 787830), (90, 577742), (99, 525220), (110, 472698), (132, 393915), (165, 315132), (180, 288871), (198, 262610), (220, 236349), (330, 157566), (396, 131305), (495, 105044), (660, 78783), (990, 52522), (1980, 26261)]