78928688

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{661}}^1$

素因数の和:1125

約数の個数: 40

約数和(自身を含む): 162534240

約数和(自身を除く): 83605552

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 439, 661, 878, 1322, 1756, 2644, 3512, 5288, 7024, 7463, 10576, 11237, 14926, 22474, 29852, 44948, 59704, 89896, 119408, 179792, 290179, 580358, 1160716, 2321432, 4642864, 4933043, 9866086, 19732172, 39464344, 78928688]

約数ペア:

[(1, 78928688), (2, 39464344), (4, 19732172), (8, 9866086), (16, 4933043), (17, 4642864), (34, 2321432), (68, 1160716), (136, 580358), (272, 290179), (439, 179792), (661, 119408), (878, 89896), (1322, 59704), (1756, 44948), (2644, 29852), (3512, 22474), (5288, 14926), (7024, 11237), (7463, 10576)]