81372800

素因数分解:

$2^7\times 5^2\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:514

約数の個数: 96

約数和(自身を含む): 204897600

約数和(自身を除く): 123524800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 59, 64, 80, 100, 118, 128, 160, 200, 236, 295, 320, 400, 431, 472, 590, 640, 800, 862, 944, 1180, 1475, 1600, 1724, 1888, 2155, 2360, 2950, 3200, 3448, 3776, 4310, 4720, 5900, 6896, 7552, 8620, 9440, 10775, 11800, 13792, 17240, 18880, 21550, 23600, 25429, 27584, 34480, 37760, 43100, 47200, 50858, 55168, 68960, 86200, 94400, 101716, 127145, 137920, 172400, 188800, 203432, 254290, 275840, 344800, 406864, 508580, 635725, 689600, 813728, 1017160, 1271450, 1379200, 1627456, 2034320, 2542900, 3254912, 4068640, 5085800, 8137280, 10171600, 16274560, 20343200, 40686400, 81372800]

約数ペア:

[(1, 81372800), (2, 40686400), (4, 20343200), (5, 16274560), (8, 10171600), (10, 8137280), (16, 5085800), (20, 4068640), (25, 3254912), (32, 2542900), (40, 2034320), (50, 1627456), (59, 1379200), (64, 1271450), (80, 1017160), (100, 813728), (118, 689600), (128, 635725), (160, 508580), (200, 406864), (236, 344800), (295, 275840), (320, 254290), (400, 203432), (431, 188800), (472, 172400), (590, 137920), (640, 127145), (800, 101716), (862, 94400), (944, 86200), (1180, 68960), (1475, 55168), (1600, 50858), (1724, 47200), (1888, 43100), (2155, 37760), (2360, 34480), (2950, 27584), (3200, 25429), (3448, 23600), (3776, 21550), (4310, 18880), (4720, 17240), (5900, 13792), (6896, 11800), (7552, 10775), (8620, 9440)]