39961940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1021}}^1$

素因数の和:1152

約数の個数: 48

約数和(自身を含む): 89281920

約数和(自身を除く): 49319980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 515, 1021, 1030, 1957, 2042, 2060, 3914, 4084, 5105, 7828, 9785, 10210, 19399, 19570, 20420, 38798, 39140, 77596, 96995, 105163, 193990, 210326, 387980, 420652, 525815, 1051630, 1998097, 2103260, 3996194, 7992388, 9990485, 19980970, 39961940]

約数ペア:

[(1, 39961940), (2, 19980970), (4, 9990485), (5, 7992388), (10, 3996194), (19, 2103260), (20, 1998097), (38, 1051630), (76, 525815), (95, 420652), (103, 387980), (190, 210326), (206, 193990), (380, 105163), (412, 96995), (515, 77596), (1021, 39140), (1030, 38798), (1957, 20420), (2042, 19570), (2060, 19399), (3914, 10210), (4084, 9785), (5105, 7828)]