68757970180

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1\times {\mathrm{105331}}^1$

素因数の和:105724

約数の個数: 48

約数和(自身を含む): 146096326656

約数和(自身を除く): 77338356476

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 257, 508, 514, 635, 1028, 1270, 1285, 2540, 2570, 5140, 32639, 65278, 105331, 130556, 163195, 210662, 326390, 421324, 526655, 652780, 1053310, 2106620, 13377037, 26754074, 27070067, 53508148, 54140134, 66885185, 108280268, 133770370, 135350335, 267540740, 270700670, 541401340, 3437898509, 6875797018, 13751594036, 17189492545, 34378985090, 68757970180]

約数ペア:

[(1, 68757970180), (2, 34378985090), (4, 17189492545), (5, 13751594036), (10, 6875797018), (20, 3437898509), (127, 541401340), (254, 270700670), (257, 267540740), (508, 135350335), (514, 133770370), (635, 108280268), (1028, 66885185), (1270, 54140134), (1285, 53508148), (2540, 27070067), (2570, 26754074), (5140, 13377037), (32639, 2106620), (65278, 1053310), (105331, 652780), (130556, 526655), (163195, 421324), (210662, 326390)]