19537480

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 46347840

約数和(自身を除く): 26810360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 43, 74, 86, 148, 172, 185, 215, 296, 307, 344, 370, 430, 614, 740, 860, 1228, 1480, 1535, 1591, 1720, 2456, 3070, 3182, 6140, 6364, 7955, 11359, 12280, 12728, 13201, 15910, 22718, 26402, 31820, 45436, 52804, 56795, 63640, 66005, 90872, 105608, 113590, 132010, 227180, 264020, 454360, 488437, 528040, 976874, 1953748, 2442185, 3907496, 4884370, 9768740, 19537480]

約数ペア:

[(1, 19537480), (2, 9768740), (4, 4884370), (5, 3907496), (8, 2442185), (10, 1953748), (20, 976874), (37, 528040), (40, 488437), (43, 454360), (74, 264020), (86, 227180), (148, 132010), (172, 113590), (185, 105608), (215, 90872), (296, 66005), (307, 63640), (344, 56795), (370, 52804), (430, 45436), (614, 31820), (740, 26402), (860, 22718), (1228, 15910), (1480, 13201), (1535, 12728), (1591, 12280), (1720, 11359), (2456, 7955), (3070, 6364), (3182, 6140)]