29939980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:383

約数の個数: 72

約数和(自身を含む): 74003328

約数和(自身を除く): 44063348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 137, 140, 196, 223, 245, 274, 446, 490, 548, 685, 892, 959, 980, 1115, 1370, 1561, 1918, 2230, 2740, 3122, 3836, 4460, 4795, 6244, 6713, 7805, 9590, 10927, 13426, 15610, 19180, 21854, 26852, 30551, 31220, 33565, 43708, 54635, 61102, 67130, 109270, 122204, 134260, 152755, 213857, 218540, 305510, 427714, 611020, 855428, 1069285, 1496999, 2138570, 2993998, 4277140, 5987996, 7484995, 14969990, 29939980]

約数ペア:

[(1, 29939980), (2, 14969990), (4, 7484995), (5, 5987996), (7, 4277140), (10, 2993998), (14, 2138570), (20, 1496999), (28, 1069285), (35, 855428), (49, 611020), (70, 427714), (98, 305510), (137, 218540), (140, 213857), (196, 152755), (223, 134260), (245, 122204), (274, 109270), (446, 67130), (490, 61102), (548, 54635), (685, 43708), (892, 33565), (959, 31220), (980, 30551), (1115, 26852), (1370, 21854), (1561, 19180), (1918, 15610), (2230, 13426), (2740, 10927), (3122, 9590), (3836, 7805), (4460, 6713), (4795, 6244)]