1278889130

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{911}}^1\times {\mathrm{1777}}^1$

素因数の和:2774

約数の個数: 32

約数和(自身を含む): 2335011840

約数和(自身を除く): 1056122710

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 911, 1777, 1822, 3554, 4555, 8885, 9110, 17770, 71969, 140383, 143938, 280766, 359845, 701915, 719690, 1403830, 1618847, 3237694, 8094235, 16188470, 127888913, 255777826, 639444565, 1278889130]

約数ペア:

[(1, 1278889130), (2, 639444565), (5, 255777826), (10, 127888913), (79, 16188470), (158, 8094235), (395, 3237694), (790, 1618847), (911, 1403830), (1777, 719690), (1822, 701915), (3554, 359845), (4555, 280766), (8885, 143938), (9110, 140383), (17770, 71969)]