199401680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1409}}^1$

素因数の和:1512

約数の個数: 80

約数和(自身を含む): 487803600

約数和(自身を除く): 288401920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 61, 80, 116, 122, 145, 232, 244, 290, 305, 464, 488, 580, 610, 976, 1160, 1220, 1409, 1769, 2320, 2440, 2818, 3538, 4880, 5636, 7045, 7076, 8845, 11272, 14090, 14152, 17690, 22544, 28180, 28304, 35380, 40861, 56360, 70760, 81722, 85949, 112720, 141520, 163444, 171898, 204305, 326888, 343796, 408610, 429745, 653776, 687592, 817220, 859490, 1375184, 1634440, 1718980, 2492521, 3268880, 3437960, 4985042, 6875920, 9970084, 12462605, 19940168, 24925210, 39880336, 49850420, 99700840, 199401680]

約数ペア:

[(1, 199401680), (2, 99700840), (4, 49850420), (5, 39880336), (8, 24925210), (10, 19940168), (16, 12462605), (20, 9970084), (29, 6875920), (40, 4985042), (58, 3437960), (61, 3268880), (80, 2492521), (116, 1718980), (122, 1634440), (145, 1375184), (232, 859490), (244, 817220), (290, 687592), (305, 653776), (464, 429745), (488, 408610), (580, 343796), (610, 326888), (976, 204305), (1160, 171898), (1220, 163444), (1409, 141520), (1769, 112720), (2320, 85949), (2440, 81722), (2818, 70760), (3538, 56360), (4880, 40861), (5636, 35380), (7045, 28304), (7076, 28180), (8845, 22544), (11272, 17690), (14090, 14152)]