81561456

素因数分解:

$2^4\times 3^2\times {\mathrm{29}}^1\times {\mathrm{19531}}^1$

素因数の和:19574

約数の個数: 60

約数和(自身を含む): 236141880

約数和(自身を除く): 154580424

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 36, 48, 58, 72, 87, 116, 144, 174, 232, 261, 348, 464, 522, 696, 1044, 1392, 2088, 4176, 19531, 39062, 58593, 78124, 117186, 156248, 175779, 234372, 312496, 351558, 468744, 566399, 703116, 937488, 1132798, 1406232, 1699197, 2265596, 2812464, 3398394, 4531192, 5097591, 6796788, 9062384, 10195182, 13593576, 20390364, 27187152, 40780728, 81561456]

約数ペア:

[(1, 81561456), (2, 40780728), (3, 27187152), (4, 20390364), (6, 13593576), (8, 10195182), (9, 9062384), (12, 6796788), (16, 5097591), (18, 4531192), (24, 3398394), (29, 2812464), (36, 2265596), (48, 1699197), (58, 1406232), (72, 1132798), (87, 937488), (116, 703116), (144, 566399), (174, 468744), (232, 351558), (261, 312496), (348, 234372), (464, 175779), (522, 156248), (696, 117186), (1044, 78124), (1392, 58593), (2088, 39062), (4176, 19531)]