279867777

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^3\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 472627200

約数和(自身を除く): 192759423

約数列:

[1, 3, 7, 19, 21, 29, 57, 67, 87, 133, 201, 203, 361, 399, 469, 551, 609, 1083, 1273, 1407, 1653, 1943, 2527, 3819, 3857, 5829, 6859, 7581, 8911, 10469, 11571, 13601, 20577, 24187, 26733, 31407, 36917, 40803, 48013, 72561, 73283, 110751, 144039, 169309, 198911, 219849, 258419, 459553, 507927, 596733, 701423, 775257, 1378659, 1392377, 2104269, 3216871, 4177131, 4909961, 9650613, 13327037, 14729883, 39981111, 93289259, 279867777]

約数ペア:

[(1, 279867777), (3, 93289259), (7, 39981111), (19, 14729883), (21, 13327037), (29, 9650613), (57, 4909961), (67, 4177131), (87, 3216871), (133, 2104269), (201, 1392377), (203, 1378659), (361, 775257), (399, 701423), (469, 596733), (551, 507927), (609, 459553), (1083, 258419), (1273, 219849), (1407, 198911), (1653, 169309), (1943, 144039), (2527, 110751), (3819, 73283), (3857, 72561), (5829, 48013), (6859, 40803), (7581, 36917), (8911, 31407), (10469, 26733), (11571, 24187), (13601, 20577)]