18587260

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{439}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 41025600

約数和(自身を除く): 22438340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 290, 292, 365, 439, 580, 730, 878, 1460, 1756, 2117, 2195, 4234, 4390, 8468, 8780, 10585, 12731, 21170, 25462, 32047, 42340, 50924, 63655, 64094, 127310, 128188, 160235, 254620, 320470, 640940, 929363, 1858726, 3717452, 4646815, 9293630, 18587260]

約数ペア:

[(1, 18587260), (2, 9293630), (4, 4646815), (5, 3717452), (10, 1858726), (20, 929363), (29, 640940), (58, 320470), (73, 254620), (116, 160235), (145, 128188), (146, 127310), (290, 64094), (292, 63655), (365, 50924), (439, 42340), (580, 32047), (730, 25462), (878, 21170), (1460, 12731), (1756, 10585), (2117, 8780), (2195, 8468), (4234, 4390)]