72797720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25633}}^1$

素因数の和:25715

約数の個数: 32

約数和(自身を含む): 166108320

約数和(自身を除く): 93310600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 25633, 51266, 102532, 128165, 205064, 256330, 512660, 1025320, 1819943, 3639886, 7279772, 9099715, 14559544, 18199430, 36398860, 72797720]

約数ペア:

[(1, 72797720), (2, 36398860), (4, 18199430), (5, 14559544), (8, 9099715), (10, 7279772), (20, 3639886), (40, 1819943), (71, 1025320), (142, 512660), (284, 256330), (355, 205064), (568, 128165), (710, 102532), (1420, 51266), (2840, 25633)]