74128990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 149688000

約数和(自身を除く): 75559010

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 89, 130, 149, 178, 215, 298, 430, 445, 559, 745, 890, 1118, 1157, 1490, 1937, 2314, 2795, 3827, 3874, 5590, 5785, 6407, 7654, 9685, 11570, 12814, 13261, 19135, 19370, 26522, 32035, 38270, 49751, 64070, 66305, 83291, 99502, 132610, 166582, 172393, 248755, 344786, 416455, 497510, 570223, 832910, 861965, 1140446, 1723930, 2851115, 5702230, 7412899, 14825798, 37064495, 74128990]

約数ペア:

[(1, 74128990), (2, 37064495), (5, 14825798), (10, 7412899), (13, 5702230), (26, 2851115), (43, 1723930), (65, 1140446), (86, 861965), (89, 832910), (130, 570223), (149, 497510), (178, 416455), (215, 344786), (298, 248755), (430, 172393), (445, 166582), (559, 132610), (745, 99502), (890, 83291), (1118, 66305), (1157, 64070), (1490, 49751), (1937, 38270), (2314, 32035), (2795, 26522), (3827, 19370), (3874, 19135), (5590, 13261), (5785, 12814), (6407, 11570), (7654, 9685)]