39898660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{491}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 89268480

約数和(自身を除く): 49369820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 239, 340, 478, 491, 956, 982, 1195, 1964, 2390, 2455, 4063, 4780, 4910, 8126, 8347, 9820, 16252, 16694, 20315, 33388, 40630, 41735, 81260, 83470, 117349, 166940, 234698, 469396, 586745, 1173490, 1994933, 2346980, 3989866, 7979732, 9974665, 19949330, 39898660]

約数ペア:

[(1, 39898660), (2, 19949330), (4, 9974665), (5, 7979732), (10, 3989866), (17, 2346980), (20, 1994933), (34, 1173490), (68, 586745), (85, 469396), (170, 234698), (239, 166940), (340, 117349), (478, 83470), (491, 81260), (956, 41735), (982, 40630), (1195, 33388), (1964, 20315), (2390, 16694), (2455, 16252), (4063, 9820), (4780, 8347), (4910, 8126)]