18817968

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{569}}^1$

素因数の和:646

約数の個数: 80

約数和(自身を含む): 53434080

約数和(自身を除く): 34616112

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 53, 78, 104, 106, 156, 159, 208, 212, 312, 318, 424, 569, 624, 636, 689, 848, 1138, 1272, 1378, 1707, 2067, 2276, 2544, 2756, 3414, 4134, 4552, 5512, 6828, 7397, 8268, 9104, 11024, 13656, 14794, 16536, 22191, 27312, 29588, 30157, 33072, 44382, 59176, 60314, 88764, 90471, 118352, 120628, 177528, 180942, 241256, 355056, 361884, 392041, 482512, 723768, 784082, 1176123, 1447536, 1568164, 2352246, 3136328, 4704492, 6272656, 9408984, 18817968]

約数ペア:

[(1, 18817968), (2, 9408984), (3, 6272656), (4, 4704492), (6, 3136328), (8, 2352246), (12, 1568164), (13, 1447536), (16, 1176123), (24, 784082), (26, 723768), (39, 482512), (48, 392041), (52, 361884), (53, 355056), (78, 241256), (104, 180942), (106, 177528), (156, 120628), (159, 118352), (208, 90471), (212, 88764), (312, 60314), (318, 59176), (424, 44382), (569, 33072), (624, 30157), (636, 29588), (689, 27312), (848, 22191), (1138, 16536), (1272, 14794), (1378, 13656), (1707, 11024), (2067, 9104), (2276, 8268), (2544, 7397), (2756, 6828), (3414, 5512), (4134, 4552)]