12015980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 26906880

約数和(自身を除く): 14890900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 307, 380, 412, 515, 614, 1030, 1228, 1535, 1957, 2060, 3070, 3914, 5833, 6140, 7828, 9785, 11666, 19570, 23332, 29165, 31621, 39140, 58330, 63242, 116660, 126484, 158105, 316210, 600799, 632420, 1201598, 2403196, 3003995, 6007990, 12015980]

約数ペア:

[(1, 12015980), (2, 6007990), (4, 3003995), (5, 2403196), (10, 1201598), (19, 632420), (20, 600799), (38, 316210), (76, 158105), (95, 126484), (103, 116660), (190, 63242), (206, 58330), (307, 39140), (380, 31621), (412, 29165), (515, 23332), (614, 19570), (1030, 11666), (1228, 9785), (1535, 7828), (1957, 6140), (2060, 5833), (3070, 3914)]