77919280

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12329}}^1$

素因数の和:12421

約数の個数: 40

約数和(自身を含む): 183470400

約数和(自身を除く): 105551120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 12329, 24658, 49316, 61645, 98632, 123290, 197264, 246580, 493160, 973991, 986320, 1947982, 3895964, 4869955, 7791928, 9739910, 15583856, 19479820, 38959640, 77919280]

約数ペア:

[(1, 77919280), (2, 38959640), (4, 19479820), (5, 15583856), (8, 9739910), (10, 7791928), (16, 4869955), (20, 3895964), (40, 1947982), (79, 986320), (80, 973991), (158, 493160), (316, 246580), (395, 197264), (632, 123290), (790, 98632), (1264, 61645), (1580, 49316), (3160, 24658), (6320, 12329)]