19156930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 20759870

約数列:

[1, 2, 5, 10, 13, 23, 26, 43, 46, 65, 86, 115, 130, 149, 215, 230, 298, 299, 430, 559, 598, 745, 989, 1118, 1490, 1495, 1937, 1978, 2795, 2990, 3427, 3874, 4945, 5590, 6407, 6854, 9685, 9890, 12814, 12857, 17135, 19370, 25714, 32035, 34270, 44551, 64070, 64285, 83291, 89102, 128570, 147361, 166582, 222755, 294722, 416455, 445510, 736805, 832910, 1473610, 1915693, 3831386, 9578465, 19156930]

約数ペア:

[(1, 19156930), (2, 9578465), (5, 3831386), (10, 1915693), (13, 1473610), (23, 832910), (26, 736805), (43, 445510), (46, 416455), (65, 294722), (86, 222755), (115, 166582), (130, 147361), (149, 128570), (215, 89102), (230, 83291), (298, 64285), (299, 64070), (430, 44551), (559, 34270), (598, 32035), (745, 25714), (989, 19370), (1118, 17135), (1490, 12857), (1495, 12814), (1937, 9890), (1978, 9685), (2795, 6854), (2990, 6407), (3427, 5590), (3874, 4945)]