81567072

素因数分解:

$2^5\times 3^2\times {\mathrm{71}}^1\times {\mathrm{3989}}^1$

素因数の和:4076

約数の個数: 72

約数和(自身を含む): 235282320

約数和(自身を除く): 153715248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 71, 72, 96, 142, 144, 213, 284, 288, 426, 568, 639, 852, 1136, 1278, 1704, 2272, 2556, 3408, 3989, 5112, 6816, 7978, 10224, 11967, 15956, 20448, 23934, 31912, 35901, 47868, 63824, 71802, 95736, 127648, 143604, 191472, 283219, 287208, 382944, 566438, 574416, 849657, 1132876, 1148832, 1699314, 2265752, 2548971, 3398628, 4531504, 5097942, 6797256, 9063008, 10195884, 13594512, 20391768, 27189024, 40783536, 81567072]

約数ペア:

[(1, 81567072), (2, 40783536), (3, 27189024), (4, 20391768), (6, 13594512), (8, 10195884), (9, 9063008), (12, 6797256), (16, 5097942), (18, 4531504), (24, 3398628), (32, 2548971), (36, 2265752), (48, 1699314), (71, 1148832), (72, 1132876), (96, 849657), (142, 574416), (144, 566438), (213, 382944), (284, 287208), (288, 283219), (426, 191472), (568, 143604), (639, 127648), (852, 95736), (1136, 71802), (1278, 63824), (1704, 47868), (2272, 35901), (2556, 31912), (3408, 23934), (3989, 20448), (5112, 15956), (6816, 11967), (7978, 10224)]