31344880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{251}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 83994624

約数和(自身を除く): 52649744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 223, 251, 280, 446, 502, 560, 892, 1004, 1115, 1255, 1561, 1757, 1784, 2008, 2230, 2510, 3122, 3514, 3568, 4016, 4460, 5020, 6244, 7028, 7805, 8785, 8920, 10040, 12488, 14056, 15610, 17570, 17840, 20080, 24976, 28112, 31220, 35140, 55973, 62440, 70280, 111946, 124880, 140560, 223892, 279865, 391811, 447784, 559730, 783622, 895568, 1119460, 1567244, 1959055, 2238920, 3134488, 3918110, 4477840, 6268976, 7836220, 15672440, 31344880]

約数ペア:

[(1, 31344880), (2, 15672440), (4, 7836220), (5, 6268976), (7, 4477840), (8, 3918110), (10, 3134488), (14, 2238920), (16, 1959055), (20, 1567244), (28, 1119460), (35, 895568), (40, 783622), (56, 559730), (70, 447784), (80, 391811), (112, 279865), (140, 223892), (223, 140560), (251, 124880), (280, 111946), (446, 70280), (502, 62440), (560, 55973), (892, 35140), (1004, 31220), (1115, 28112), (1255, 24976), (1561, 20080), (1757, 17840), (1784, 17570), (2008, 15610), (2230, 14056), (2510, 12488), (3122, 10040), (3514, 8920), (3568, 8785), (4016, 7805), (4460, 7028), (5020, 6244)]