20178256960

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{701}}^1\times {\mathrm{3911}}^1$

素因数の和:4652

約数の個数: 112

約数和(自身を含む): 50222944512

約数和(自身を除く): 30044687552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 701, 736, 920, 1402, 1472, 1840, 2804, 3505, 3680, 3911, 5608, 7010, 7360, 7822, 11216, 14020, 15644, 16123, 19555, 22432, 28040, 31288, 32246, 39110, 44864, 56080, 62576, 64492, 78220, 80615, 89953, 112160, 125152, 128984, 156440, 161230, 179906, 224320, 250304, 257968, 312880, 322460, 359812, 449765, 515936, 625760, 644920, 719624, 899530, 1031872, 1251520, 1289840, 1439248, 1799060, 2579680, 2741611, 2878496, 3598120, 5159360, 5483222, 5756992, 7196240, 10966444, 13708055, 14392480, 21932888, 27416110, 28784960, 43865776, 54832220, 63057053, 87731552, 109664440, 126114106, 175463104, 219328880, 252228212, 315285265, 438657760, 504456424, 630570530, 877315520, 1008912848, 1261141060, 2017825696, 2522282120, 4035651392, 5044564240, 10089128480, 20178256960]

約数ペア:

[(1, 20178256960), (2, 10089128480), (4, 5044564240), (5, 4035651392), (8, 2522282120), (10, 2017825696), (16, 1261141060), (20, 1008912848), (23, 877315520), (32, 630570530), (40, 504456424), (46, 438657760), (64, 315285265), (80, 252228212), (92, 219328880), (115, 175463104), (160, 126114106), (184, 109664440), (230, 87731552), (320, 63057053), (368, 54832220), (460, 43865776), (701, 28784960), (736, 27416110), (920, 21932888), (1402, 14392480), (1472, 13708055), (1840, 10966444), (2804, 7196240), (3505, 5756992), (3680, 5483222), (3911, 5159360), (5608, 3598120), (7010, 2878496), (7360, 2741611), (7822, 2579680), (11216, 1799060), (14020, 1439248), (15644, 1289840), (16123, 1251520), (19555, 1031872), (22432, 899530), (28040, 719624), (31288, 644920), (32246, 625760), (39110, 515936), (44864, 449765), (56080, 359812), (62576, 322460), (64492, 312880), (78220, 257968), (80615, 250304), (89953, 224320), (112160, 179906), (125152, 161230), (128984, 156440)]